Answer:
num_ones = amount_to_change % 5
Explanation:
It is given that the cashier has to change the money in the maximum number of 5 dollar bills and remaining as $1 bills.
We have to write a single statement of code to assign the value to variable num_ones to find the value of $1 bills given amount_to_change.
Let us solve this by taking example:
If amount_to_change = $19
Then total number of $5 bills that can be given is 3. And amount that can be given as $5 bills is [tex]\bold{3 \times 5 = \$15}[/tex]
So, the remaining amount i.e. $19 - $15 = $4 will be given as one dollar bills.
Out of these $19, 4 bills of $1 can be found using the Modulus (%) operator.
Modulus operator leaves the remainder i.e.
Output of p % q is the remainder when a number 'p' is divided by 'q'.
19 % 5 = 4
4 is the number of one dollar bills to be given.
So, single line of code for the number of one dollar bills can be written as:
num_ones = amount_to_change % 5
Let us try it for amount_to_change = $30
We know that 6 number of $5 bills can be used to change the amount of $30 and no one dollar bill required.
num_ones = 30 % 5 = 0 (because 30 is completely divisible by 5 so remainder is 0)
So, the correct statement is:
num_ones = amount_to_change % 5
How many times does the following loop execute? double d; Random generator = new Random(); double x = generator.nextDouble() * 100; do { d = Math.sqrt(x) * Math.sqrt(x) - x; System.out.println(d); x = generator.nextDouble() * 10001; } while (d != 0); exactly once exactly twice can't be determined always infinite loop
Answer:
The number of execution can't always be determines
Explanation:
The following points should be noted
Variable d relies on variable x (both of double data type) for its value
d is calculated as
[tex]d = \sqrt{x}^2 - x[/tex]
Mere looking at the above expression, the value of d should be 0;
However, it doesn't work that way.
The variable x can assume two categories of values
Small Floating Point ValuesLarge Floating Point ValuesThe range of the above values depend on the system running the application;
When variable x assumes a small value,
[tex]d = \sqrt{x}^2 - x[/tex] will definitely result in 0 and the loop will terminate immediately because [tex]\sqrt{x}^2 = x[/tex]
When variable x assumes a large value,
[tex]d = \sqrt{x}^2 - x[/tex] will not result in 0 because their will be [tex]\sqrt{x}^2 \neq x[/tex]
The reason for this that, the compiler will approximate the value of [tex]\sqrt{x}^2[/tex] and this approximation will not be equal to [tex]x[/tex]
Hence, the loop will be executed again.
Since, the range of values variable x can assume can not be predetermined, then we can conclude that the number of times the loop will be executed can't be determined.
Use the following cell phone airport data speeds (Mbps) from a particular network. Find P10. 0.1 0.1 0.3 0.3 0.3 0.4 0.4 0.4 0.6 0.7 0.7 0.7 0.8 0.8
Answer:
[tex]P_{10} =0.1[/tex]
Explanation:
Given
[tex]0.1, 0.1, 0.3, 0.3, 0.3, 0.4, 0.4, 0.4, 0.6, 0.7, 0.7, 0.7, 0.8, 0.8[/tex]
Required
Determine [tex]P_{10}[/tex]
[tex]P_{10}[/tex] implies 10th percentile and this is calculated as thus
[tex]P_{10} = \frac{10(n+1)}{100}[/tex]
Where n is the number of data; n = 14
[tex]P_{10} = \frac{10(n+1)}{100}[/tex]
Substitute 14 for n
[tex]P_{10} = \frac{10(14+1)}{100}[/tex]
[tex]P_{10} = \frac{10(15)}{100}[/tex]
Open the bracket
[tex]P_{10} = \frac{10 * 15}{100}[/tex]
[tex]P_{10} = \frac{150}{100}[/tex]
[tex]P_{10} = 1.5th\ item[/tex]
This means that the 1.5th item is [tex]P_{10}[/tex]
And this falls between the 1st and 2nd item and is calculated as thus;
[tex]P_{10} = 1.5th\ item[/tex]
Express 1.5 as 1 + 0.5
[tex]P_{10} = (1 +0.5)\ th\ item[/tex]
[tex]P_{10} = 1^{st}\ item +0.5(2^{nd} - 1^{st}) item[/tex]
From the given data; [tex]1st\ item = 0.1[/tex] and [tex]2nd\ item = 0.1[/tex]
[tex]P_{10} = 1^{st}\ item +0.5(2^{nd} - 1^{st}) item[/tex] becomes
[tex]P_{10} =0.1 +0.5(0.1 - 0.1)[/tex]
[tex]P_{10} =0.1 +0.5(0)[/tex]
[tex]P_{10} =0.1 +0[/tex]
[tex]P_{10} =0.1[/tex]
A byte addressable direct-mapped cache has 1024 blocks/lines, with each block having eight 32-bit words. How many bits are required for block offset, assuming a 32-bit address
Answer and Explanation:
"The inquiry as presented is not necessarily responsible. A word has been states as 32-bit. We need to ask if the frame is "byte-addressable" (From this we can access to get an 8-bit piece of information) or "text-addressable" (the smallest open lump is 32-bit) or maybe "half-word-addressable" (the tiny bundle of information it could reach to 16-bit).
To understand what the smallest request bit of a position is to let anyone know, you have to remember this.
You operate from base up at that stage. We will agree with the byte-addressable structure. Every reserved square at a certain point contains 8 words * (4 bytes/word) = 32 = 25 bytes, so the counterbalance seems to be 5 bits.
The history in a direct-mapped stored is the squares in reserves (12 bits for this position due to 212 = 4096). at a certain point, as you have seen, the tag is also one of the bits left behind.
As the reserve becomes increasingly cooperative. And a similar size remains. These are lesser bits on the list and more bits on the mark.'
LAB: Max magnitude. Sections: 2.8, 4.2, 6.7.
Write a function max_magnitude() with two integer input parameters that returns the largest magnitude value. Use the function in a program that takes two integer inputs, and outputs the largest magnitude value.
Your program must define and call the following function:
def max_magnitude(user_val1, user_val2)
Ex: If the inputs are:
5 7
the function returns:
7
Ex: If the inputs are:
-8 -2
the function returns:
-8
****IN PYTHON******
Answer:
The program written in python is as follows:
import math
def max_magnitude(user_val1, user_val2):
if abs(user_val1)>abs(user_val2):
return user_val1
else:
return user_val2
val1 = int(input("Value 1: "))
val2 = int(input("Value 2: "))
print(max_magnitude(val1,val2))
Explanation:
This line imports the math module in the program
import math
This line declares the function with two parameters
def max_magnitude(user_val1, user_val2):
The if condition gets the absolute value of both integers and compares them; The integer with greater magnitude is returned, afterwards
if abs(user_val1)>abs(user_val2):
return user_val1
else:
return user_val2
The main method starts here
The next two lines prompt user for input
val1 = int(input("Value 1: "))
val2 = int(input("Value 2: "))
This line gets the integer with higher magnitude
print(max_magnitude(val1,val2))
A program is considered portable if it . . . can be rewritten in a different programming language without losing its meaning. can be quickly copied from conventional RAM into high-speed RAM. can be executed on multiple platforms. none of the above
Answer:
Can be executed on multiple platforms.
Explanation:
A program is portable if it is not platform dependent. In other words, if the program is not tightly coupled to a particular platform, then it is said to be portable. Portable programs can run on multiple platforms without having to do much work. By platform, we essentially mean the operating system and hardware configuration of the machine's CPU.
Examples of portable programs are those written in;
i. Java
ii. C++
iii. C
A user states that when they power on their computer, they receive a "Non-bootable drive" error. The user works with external storage devices to transport data to their computer. The user stated that the computer worked fine the day before. Which of the following should be checked FIRST to resolve this issue?
A. Jumper settings
B. Device boot order
C. PXE boot settings
D. Hard drive cable
Answer:
B. Device boot order
Explanation:
The Device boot order makes a list of all the possible devices a system should check to in the operating system's boot files, as well as the proper sequence they should be in. Removable devices, hard drives, and flash drives are some devices that can be listed in the device boot order.
For the user whose computer displays a 'non-bootable drive' error, the device boot order would check all the devices listed to attempt booting from any of them. These devices might be in the order of removable discs, CD-ROM, hard drive. If all the options do not work, the computer would then do a Network boot. The order in which the devices are listed can be altered by the user.
Some systems analysts maintain that source documents are unnecessary. They say that an input can be entered directly into the system, without wasting time in an intermediate step.
Do you agree? Can you think of any situations where source documents are essential?
Answer:
The summary including its given subject is mentioned in the portion here below explanatory.
Explanation:
No, I disagree with the argument made by 'system analyst' whether it is needless to preserve source records, rather, therefore, the details provided input would be fed immediately into the machine. Different source document possibilities can be considered may play a significant role in accessing data.Assumed a person experiences a problem when collecting and analyzing data that has no complete access or that individual is not happy with the system or that may want comprehensive data search. However, a need arises to keep data both sequentially and fed further into the desktop system that would help us through tracking purposes.Even with all the documentation that has been held is essentially for the user to do anything efficiently and conveniently without even any issues and 'device analyst' would guarantee that it has been applied in a very well-defined way.Alcatel-Lucent’s High Leverage Network (HLN) increases bandwidth and network capabilities while reducing the negative impact on the environment. HLN can handle large amounts of traffic more efficiently because __________.
Answer:
The networks are intelligent and send packets at the highest speed and most efficiently.
Explanation:
Alcatel-Lucent was founded in 1919, it was a French global telecommunications equipment manufacturing company with its headquarter in Paris, France. Alcatel-Lucent provide services such as telecommunications and hybrid networking solutions deployed both in the cloud and on properties.
Alcatel-Lucent’s High Leverage Network (HLN) increases bandwidth and network capabilities while reducing the negative impact on the environment. This high leverage network can handle large amounts of traffic more efficiently because the networks are intelligent and send packets at the highest speed and most efficiently. HLN are intelligent such that it delivers increased bandwidth using fewer devices and energy.
Generally, when the High Leverage Network (HLN) is successfully implemented, it helps telecommunications companies to improve their maintenance costs, operational efficiency, enhance network performance and capacity to meet the bandwidth demands of their end users.
A large population of ALOHA users manages to generate 50 requests/sec, including both originals and retransmissions. Time is slotted in units of 40 msec.
Required:
a. What is the chance of success on the first attempt?
b. What is the probability of exactly k collisions and then a success?
c. What is the expected number of transmission attempts needed?
Answer:
The answer is below
Explanation:
Given that:
Frame transmission time (X) = 40 ms
Requests = 50 requests/sec, Therefore the arrival rate for frame (G) = 50 request * 40 ms = 2 request
a) Probability that there is success on the first attempt = [tex]e^{-G}G^k[/tex] but k = 0, therefore Probability that there is success on the first attempt = [tex]e^{-G}=e^{-2}=0.135[/tex]
b) probability of exactly k collisions and then a success = P(collisions in k attempts) × P(success in k+1 attempt)
P(collisions in k attempts) = [1-Probability that there is success on the first attempt]^k = [tex][1-e^{-G}]^k=[1-0.135]^k=0.865^k[/tex]
P(success in k+1 attempt) = [tex]e^{-G}=e^{-2}=0.135[/tex]
Probability of exactly k collisions and then a success = [tex]0.865^k0.135[/tex]
c) Expected number of transmission attempts needed = probability of success in k transmission = [tex]e^{G}=e^{2}=7.389[/tex]
Identify five key technologies/innovations and discuss their advantages and disadvantages to developing countries like Ghana.
Answer:
The key technology/ innovation advantage and disadvantage can be defined as follows:
Explanation:
Following are the 5 innovations and technology, which promote the other development goals, like renewable energy, quality of jobs, and growth of economic with the good health and very well-being:
1) The use of crop monitoring drone technology promotes sustainable farming.
2) The production of plastic brick including highways, floors, and houses.
3) The new banking market or digital banking.
4) E-commerce site.
5) Renewable energy deployment such as solar panels.
Advantage:
It simple insect control, disease, fertilizer, etc. It helps in aid in environmental purification and job formation.It is also fast and easy, Funds are transferred extremely easily through one account to another. Minimal prices, quick customer developments, and competition in the industry. It saves them money in the medium-haul, less servicing.Disadvantage:
The drones are too expensive to use, so poor farmers can be cut off. Specialist technicians and gaining popularity are required. The financial services data can be distributed through many devices and therefore become more fragile. The personal contact loss, theft, security problems, etc. The higher operating costs, geographical limitations, and so on.Which tab group is used to modify the background of a chart that is contained in a PowerPoint presentation?
Chart styles
Data
Type
Chart layouts
Answer:
Chart styles
Explanation:
In PowerPoint, once you have inserted a chart (e.g a bar or pie chart), the format tab would be enabled so that you can format your chart to your taste. In this format tab, there are a bunch of tab groups such as:
(i) Chart styles: This allows you to typically change the component background colors of your chart.
(ii) Data: This contains sub-tabs that allow you to edit and select the data on your chart.
(iii) Type: This contains sub-tabs such as "Change Chart Type" which will allow you to change the type of the chart. For example if you were using a pie chart and you want to change it to a bar chart or any other chart, you can do that here.
(iv) Chart Layouts: This allows to change or modify how the selected chart is laid out.
Availability is an essential part of ________ security, and user behavior analysis and application analysis provide the data needed to ensure that systems are available. baseline infrastructure applications network
Answer:
Network.
Explanation:
Availability is an essential part of network security, and user behavior analysis and application analysis provide the data needed to ensure that systems are available.
Availability in computer technology ensures that systems, applications, network connectivity and data are freely available to all authorized users when they need them to perform their daily routines or tasks. In order to make network systems available regularly, it is very essential and important to ensure that all software and hardware technical conflicts are always resolved as well as regular maintenance of the systems.
A network administrator can monitor the network traffics and unusual or unknown activities on the network through the user behavior analysis and data gathered from the application analysis to ensure the effective and efficient availability of systems.
Assume userName equals "Tom" and userAge equals 22. What is displayed in a dialog box when the following statement is executed? alert(userAge + " \nis " + userName + "'s age.");
Answer:
22
is Tom's age.
Explanation:
Since userAge is initialized as 22, 22 will be displayed in a line. Then, since there is a "\n" which means go the new line, the program will display in the new line. is will be displayed. Since userName is initialized as Tom, Tom will be displayed. Then 's age. will be displayed in the same line.
What is the value of the variable named myNum after the statements that follow are executed? var myNum = 14; var yourNum = 4; myNum++; yourNum-- myNum = myNum * yourNum;
Answer:
45
Explanation:
Initially, myNum is equal to 14 and yourNum is equal to 4
Then, myNum is incremented by 1 and becomes 15
Also, yourNum is decremented by 1 and becomes 3
Finally, myNum is set to myNum x yourNum, 15 x 3 = 45
Write a program that prompts the user for the name of two files each containing a single line that represents a decimal integercall them m and n, keep in mind that theseintegerscould be very largein absolute value, so they might not be stored neither as along nor intvariables. You should:a)Handle erroneous input graciously.b)Include a class named BigIntegerwhere you define an integer as a linked list, along with integer operations such as addition and subtraction [multiplication and division will grant you extra points] c)Test your program for each operation and store the result of each operation as a single decimal number in a separate file containing only one line\
Answer:
The output is seen bellow
Explanation:
public class BigInteger {
public class Node{
private char data;
private Node next;
public Node(char d){
this.setData(d);
this.setNext(null);
}
public char getData() {
return data;
}
public void setData(char data) {
this.data = data;
}
public Node getNext() {
return next;
}
public void setNext(Node next) {
this.next = next;
}
}
private Node root;
public BigInteger(String s){
this.root=null;
for(int i=s.length()-1;i>=0;i--){
Node node=new Node(s.charAt(i));
node.setNext(root);
root=node;
}
}
public String toString(){
String str="";
Node cur=this.root;
int i=0;
while(cur!=null){
if(i==0 && cur.getData()=='0'){
}
else{
i=1;
str+=cur.getData();
}
cur=cur.getNext();
}
return str;
}
public String reverse(String s){
String ret="";
for(int i=s.length()-1;i>=0;i--){
ret+=s.charAt(i);
}
return ret;
}
public BigInteger add(BigInteger s){
String f=this.reverse(this.toString());
String l=this.reverse(s.toString());
int max=(f.length()>l.length())?f.length():l.length();
String ret="";
int carry=0;
for(int i=0;i<max;i++){
int sum=carry;
if(i<f.length()){
sum+=(f.charAt(i)-'0');
}
if(i<l.length()){
sum+=(l.charAt(i)-'0');
}
ret+=(char)(sum%10+'0');
carry=(sum/10);
}
if(carry!=0){
ret+='1';
}
BigInteger bi=new BigInteger(this.reverse(ret));
return bi;
}
public boolean bigNum(String s1,String s2){
if(s1.length()>s2.length()){
return true;
}
else{
if(s1.length()<s2.length()){
return false;
}
else{
for(int i=0;i<s1.length();i++){
if(s1.charAt(i)!=s2.charAt(i)){
if(s1.charAt(i)>s2.charAt(i)){
return true;
}
else{
return false;
}
}
}
}
}
return false;
}
public BigInteger subtraction(BigInteger s){
String f=this.toString();
String l=s.toString();
boolean b=this.bigNum(f, l);
if(b==false){
String tmp=f;
f=l;
l=tmp;
}
f=this.reverse(f);
l=this.reverse(l);
int max=(f.length()>l.length())?f.length():l.length();
String ret="";
int borrow=0;
for(int i=0;i<max;i++){
int sum=borrow;
if(i<f.length()){
sum+=(f.charAt(i)-'0');
}
if(i<l.length()){
sum-=(l.charAt(i)-'0');
}
if(sum<0){borrow=-1;sum=10+sum;}
else{borrow=0;}
ret+=(char)(sum%10+'0');
}
if(b==false){
ret+="-";
}
BigInteger bi=new BigInteger(this.reverse(ret));
return bi;
}
public BigInteger multiplication(BigInteger s){
String f=this.toString();
String l=s.toString();
int len=l.length();
BigInteger bi=new BigInteger("");
for(int i=len-1;i>=0;i--){
//System.out.println(l.charAt(i));
BigInteger r=new BigInteger(f);
for(int j=(l.charAt(i)-'0');j>1;j--){
r=r.add(new BigInteger(f));
//System.out.print(r+" " );
}
//System.out.println();
bi=bi.add(r);
f=f+"0";
}
return bi;
}
public BigInteger division(BigInteger s){
BigInteger t=this;
BigInteger bi=new BigInteger("");
int i=0;
t=t.subtraction(s);
String str=t.toString();
while(str.charAt(0)!='-' && i<40){
//System.out.println(str+" "+(i+1));
bi=bi.add(new BigInteger("1"));
t=t.subtraction(s);
str=t.toString();
i++;
}
return bi;
}
}
-------------------
import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Scanner;
public class Driver {
public static void main(String [] args){
Scanner sc=new Scanner(System.in);
String str1="";
String str2="";
System.out.print("Enter file name 1 :");
String file1=sc.next();
//String file1="datafile1.txt";
BufferedReader reader1;
try {
reader1 = new BufferedReader(new FileReader(file1));
while((str1=reader1.readLine())!=null){
break;
}
reader1.close();
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
System.out.print("Enter file name 2 :");
String file2=sc.next();
//String file2="datafile2.txt";
BufferedReader reader2;
try {
reader2 = new BufferedReader(new FileReader(file2));
while((str2=reader2.readLine())!=null){
break;
}
reader2.close();
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
Explain ways that computer-related errors are associated with the people using those computers. Contrast that with errors made by the computer systems directly.
Answer and Explanation:
Computer related errors associated with people that use these computers are errors that are made by human beings in instructing(or programming) the computer to do or complete a certain task. This could involve such things as moving paper based data to the computer(electronic data) where the human could enter incorrect data or inconsistent programs or code.
Computer related errors which directly have to do with the computer consist of error thrown by the system as a result of ineffective code or software related issues or faulty hardware. In either case all computer related errors are inherently caused by humans since a computer would only take instruction given to it.
A cache has been designed such that it has 512 lines, with each line or block containing 8 words. Identify the line number, tag, and word position for the 20-bit address 94EA616 using the direct mapping method.
Answer:
Given address = 94EA6[tex]_{16}[/tex]
tag = 0 * 94 ( 10010100 )
line = 0 * 1 D 4 ( 111010100 )
word position = 0*6 ( 110 )
Explanation:
using the direct mapping method
Number of lines = 512
block size = 8 words
word offset = [tex]log ^{8} _{2}[/tex] = 3 bit
index bit = [tex]log^{512}_{2}[/tex] = 9 bit
Tag = 20 - ( index bit + word offset ) = 20 - ( 3+9) = 8 bit
Given address = 94EA6[tex]_{16}[/tex]
tag = 0 * 94 ( 10010100 )
line = 0 * 1 D 4 ( 111010100 )
word position = 0*6 ( 110 )
Use the loop invariant (I) to show that the code below correctly computes the product of all elements in an array A of n integers for any n ≥ 1. First use induction to show that (I) is indeed a loop invariant, and then draw conclusions for the termination of the while loop.
Algorithm 1 computeProduct(int[ ] A, int n)
p = a[0]
i = 0
while i < n − 1 do
//(I) p = a[0] · a[1] · · · a[i] (Loop Invariant)
i + +
p = p · a[i]
end while
return p
Answer:
Given Loop Variant P = a[0], a[1] ... a[i]
It is product of n terms in array
Explanation:
The Basic Step: i = 0, loop invariant p=a[0], it is true because of 'p' initialized as a[0].
Induction Step: Assume that for i = n - 3, loop invariant p is product of a[0], a[1], a[2] .... a[n - 3].
So, after that multiply a[n - 2] with p, i.e P = a[0], a[1], a[2] .... a[n - 3].a[n - 2].
After execution of while loop, loop variant p becomes: P = a[0], a[1], a[2] .... a[n -3].a[n -2].
for the case i = n-2, invariant p is product of a[0], a[1], a[2] .... a[n-3].a[n-2]. It is the product of (n-1) terms. In while loop, incrementing the value of i, so i=n-1
And multiply a[n-1] with p, i.e P = a[0].a[1].a[2].... a[n-2].
a[n-1]. i.e. P=P.a[n-1]
By the assumption for i=n-3 loop invariant is true, therefore for i=n-2 also it is true.
By induction method proved that for all n > = 1 Code will return product of n array elements.
While loop check the condition i < n - 1. therefore the conditional statement is n - i > 1
If i = n , n - i = 0 , it will violate condition of while loop, so, the while loop will terminate at i = n at this time loop invariant P = a[0].a[1].a[2]....a[n-2].a[n-1]
#Imagine you're writing some code for an exercise tracker. #The tracker measures heart rate, and should display the #average heart rate from an exercise session. # #However, the tracker doesn't automatically know when the #exercise session began. It assumes the session starts the #first time it sees a heart rate of 100 or more, and ends #the first time it sees one under 100. # #Write a function called average_heart_rate. #average_heart_rate should have one parameter, a list of #integers. These integers represent heart rate measurements #taken 30 seconds apart. average_heart_rate should return #the average of all heart rates between the first 100+ #heart rate and the last one. Return this as an integer #(use floor division when calculating the average). # #You may assume that the list will only cross the 100 beats #per minute threshold once: once it goes above 100 and below #again, it will not go back above.
Answer:
Following are the code to this question:
def average_heart_rate(beats):#defining a method average_heart_rate that accepts list beats
total=0 #defining integer variable total,that adds list values
count_list=0#defining a count_list integer variable, that counts list numbers
for i in beats:#defining for loop to add list values
if i>= 100:#defining if block to check value is greater then 100
total += i#add list values
count_list += 1# count list number
return total//count_list #return average_heart_rate value
beats=[72,77,79,95,102,105,112,115,120,121,121,125, 125, 123, 119, 115, 105, 101, 96, 92, 90, 85]#defining a list
print("The average heart rate value:",average_heart_rate(beats)) # call the mnethod by passing value
Output:
The average heart rate value: 114
Explanation:
In the given question some data is missing so, program description can be defined as follows:
In the given python code, the method "average_heart_rate" defined that accepts list "beats" as the parameter, inside the method two-variable "total and count_list " is defined that holds a value that is 0.In the next line, a for loop is that uses the list and if block is defined that checks list value is greater then 100. Inside the loop, it calculates the addition and its count value and stores its values in total and count_list variable, and returns its average value.Teachers in most school districts are paid on a schedule that provides a salary based on their number of years of teaching experience. For example, a beginning teacher in the Lexington School District might be paid $30,000 the first year. For each year of experience after this first year, up to 10 years, the teacher receives a 2% increase over the preceding value. Write a program that displays a salary schedule, in tabular format, for teachers in a school district. The inputs are:
Answer:
Here is the python code:
StartingSal = int(input("Enter the starting salary: "))
AnnualIncrease = (int(input("Enter the annual % increase: ")) / 100)
Years = int(input("Enter the number of years: "))
for count in range(1,Years+1):
print("Year ", count, " Salary: ", StartingSal*((1+AnnualIncrease)**(count-1)))
Explanation:
This program prompts the user to enter starting salary, percentage increase in salary per year and number of years.
The for loop has range function which is used to specify how many times the salaries are going to be calculated for the number of years entered. It starts from 1 and ends after Years+1 means one value more than the year to display 10 too when user inputs 10 days.
The year and corresponding salary is displayed in output. At every iteration the starting salary is multiplied by annual percentage increase input by user. Here count is used to count the number of salaries per year, count-1 means it will start from 30000.
Similar to Wi-Fi, ____ is designed to provide internet access to fixed locations (sometimes called hot zones), but the coverage is significantly larger
Answer:
WiMAX.
Explanation:
WiMAX is an acronym for Worldwide Interoperability for Microwave Access, it is a wireless communications which is primarily based on the IEEE 802.16 standards for creating Metropolitan Area Network (MAN) for the internet users.
Similar to Wi-Fi, WiMAX is designed to provide internet access to fixed locations (sometimes called hot zones), but the coverage is significantly larger.
WiMAX is capable of covering large metropolitan distance of several kilometers while Wi-Fi covers just a local (short) area measured in meters.
Generally, WiMAX was invented by the WiMAX forum and is a telecommunications standard protocol that provides fixed and fully mobile internet access services over a wide range.
in an agile team who is responsible for tracking the tasks
Answer:
All team members
Explanation:
In respect of the question, the or those responsible for tracking the tasks in an agile team comprises of all the team members.
Agile in relation to task or project management, can be refer to an act of of division of project or breaking down of project or tasks into smaller unit. In my opinion, these is carried out so that all team members can be duly involved in the tasks or project.
Assign max_sum with the greater of num_a and num_b, PLUS the greater of num_y and num_z. Use just one statement. Hint: Call find_max() twice in an expression.
Sample output with inputs: 5.0 10.0 3.0 7.0
max_sum is: 17.0
1 det find_max(num_1, num_2):
2 max_val = 0.0
3
4 if (num_1 > num_2): # if num1 is greater than num2,
5 max_val = num_1 # then num1 is the maxVal.
6 else: # Otherwise,
7 max_val = num_2 # num2 is the maxVal
8 return max_val
9
10 max_sum = 0.0
11
12 num_a = float(input)
13 num_b = float(input)
14 num_y = float(input)
15 num_z = float(input)
16
17"" Your solution goes here
18
19 print('max_sum is:', max_sum)
Answer:
def find_max(num_1, num_2):
max_val = 0.0
if (num_1 > num_2): # if num1 is greater than num2,
max_val = num_1 # then num1 is the maxVal.
else: # Otherwise,
max_val = num_2 # num2 is the maxVal
return max_val
max_sum = 0.0
num_a = float(input())
num_b = float(input())
num_y = float(input())
num_z = float(input())
max_sum = find_max(num_a, num_b) + find_max(num_y, num_z)
print('max_sum is:', max_sum)
Explanation:
I added the missing part. Also, you forgot the put parentheses. I highlighted all.
To find the max_sum, you need to call the find_max twice and sum the result of these. In the first call, use the parameters num_a and num_b (This will give you greater among them). In the second call, use the parameters num_y and num_z (This will again give you greater among them)
There is a colony of 8 cells arranged in a straight line where each day every cell competes with its adjacent cells(neighbour). Each day, for each cell, if its neighbours are both active or both inactive, the cell becomes inactive the next day,. otherwise itbecomes active the next day.
Assumptions: The two cells on the ends have single adjacent cell, so the other adjacent cell can be assumsed to be always inactive. Even after updating the cell state. consider its pervious state for updating the state of other cells. Update the cell informationof allcells simultaneously.
Write a fuction cellCompete which takes takes one 8 element array of integers cells representing the current state of 8 cells and one integer days representing te number of days to simulate. An integer value of 1 represents an active cell and value of 0 represents an inactive cell.
Program:
int* cellCompete(int* cells,int days)
{
//write your code here
}
//function signature ends
Test Case 1:
INPUT:
[1,0,0,0,0,1,0,0],1
EXPECTED RETURN VALUE:
[0,1,0,0,1,0,1,0]
Test Case 2:
INPUT:
[1,1,1,0,1,1,1,1,],2
EXPECTED RETURN VALUE:
[0,0,0,0,0,1,1,0]
This is the problem statement given above for the problem. The code which I have written for this problem is given below. But the output is coming same as the input.
#include
using namespace std;
// signature function to solve the problem
int *cells(int *cells,int days)
{ int previous=0;
for(int i=0;i
{
if(i==0)
{
if(cells[i+1]==0)
{
previous=cells[i];
cells[i]=0;
}
else
{
cells[i]=0;
}
if(i==days-1)
{
if(cells[days-2]==0)
{
previous=cells[days-1];
cells[days-1]=0;
}
else
{
cells[days-1]=1;
}
}
if(previous==cells[i+1])
{
previous=cells[i];
cells[i]=0;
}
else
{
previous=cells[i];
cells[i]=1;
}
}
}
return cells;
}
int main()
{
int array[]={1,0,0,0,0,1,0,0};
int *result=cells(array,8);
for(int i=0;i<8;i++)
cout<
}
I am not able to get the error and I think my logic is wrong. Can we apply dynamic programming here If we can then how?
Answer:
I am writing a C++ program using loops instead of nested if statements.
#include <iostream> // to use input output functions
using namespace std; // to identify objects like cin cout
void cells(int cells[],int days){ /* function that takes takes one array of integers cells, one integer days representing the number of days to simulate. */
int pos ,num=0; //declares variables pos for position of two adjacent cells and num to iterate for each day
int result[9]; //the updated output array
while (num< days) { //this loop keeps executing till the value of num is less than the value of number of days
num++;
for(pos=1;pos<9;pos++) //this loop has a pos variable that works like an index and moves through the cell array
result[pos]=(cells[pos-1])^ (cells[pos+1]); //updated cell state determined by the previous and next cells (adjacent cells) by bitwise XOR operations
for(pos=1;pos<9;pos++) //iterates through the array
cells[pos]=result[pos]; } //the updated cells state is assigned to the cell array simultaneously
for(pos=1;pos<9;pos++) //iterates through the array and prints the resultant array that contains the updated active and inactive cells values
cout << result[pos]; }
int main() { //start of the main function body
int j,day;
int output[9];
*/the two cells on the ends (first and last positions of array) have single adjacent cell, so the other adjacent cell can be assumed to be always inactive i.e. 0 */
output[0]=output[9]=0;
for(j=1;j<9;j++) //takes the input array from user
cin >> output[j];
cin >> day;
cells(output,day); } //calls the function cells to print the array with active and inactive cells states.
Explanation:
The program is well explained in the comments mentioned with every statement of the program. I will explain with the help of example:
Suppose the user enters the array = [1,0,0,0,0,1,0,0] and days=1
The while loop checks if the value of num is less than that of days. Here num is 0 and days is 1 So this means that the body of while loop will execute.
In the body of while loop the value of num is incremented by 1. The first loop initializes a variable pos for position of adjacent cells. The statement is a recursive statement result[pos]=(cells[pos-1])^ (cells[pos+1]) that uses previous state for updating the state of other cells. The “^” is the symbol used for bitwise exclusive operator. In bitwise XOR operations the two numbers are taken as operands and XOR is performed on every bit of two numbers. The result of XOR is 1 if the two bits are not same otherwise 0. For example XOR of 1^0 and 0^1 is 1 and the XOR of 0^0 and 1^1 is 0. The second for loop update the cell information of all cells simultaneously. The last loop prints the updated cells states.
The main function takes the input array element from user and the value for the days and calls the cells function to compute the print the active and inactive cells state information.
The screenshot of the program along with its output are attached.
Consider a system consisting of m resources of the same type, being shared by n processes. Resources can be requested and released by processes only one at a time. Show that the system is deadlock free if the following two conditions hold:__________.
A. The maximum need of each process is between 1 and m resources
B. The sum of all maximum needs is less than m+n.
Answer:
Explanation:
The system will be deadlock free if the below two conditions holds :
Proof below:
Suppose N = Summation of all Need(i), A = Addition of all Allocation(i), M = Addition of all Max(i). Use contradiction to prove.
Suppose this system isn't deadlock free. If a deadlock state exists, then A = m due to the fact that there's only one kind of resource and resources can be requested and released only one at a time.
Condition B, N + A equals M < m + n. Equals N + m < m + n. And we get N < n. It means that at least one process i that Need(i) = 0.
Condition A, Pi can let out at least 1 resource. So there will be n-1 processes sharing m resources now, Condition a and b still hold. In respect to the argument, No process will wait forever or permanently, so there's no deadlock.
Normally you depend on the JVM to perform garbage collection automatically. However, you can explicitly use ________ to request garbage collection.
Answer:
System.gc()
Explanation:
System.gc() can be defined as the method which can be used to effectively request for garbage collection because they runs the garbage collector, which in turn enables JMV which is fully known as JAVA VIRTUAL MACHINE to claim back the already unused memory space of the objects that was discarded for quick reuse of the memory space , although Java virtual machine often perform garbage collection automatically.
Oops, we made a mistake: we created a key "short" and gave it the value "tall", but we wanted to give it the value "long" instead. Write the line of code that will change the value associated with the key "short" to "long". Be consistent in whether you use single or double quotes to declare your strings: our autograder assumes you'll be consistent.
Answer:
Using java
//assuming that hashmap object name is ChangeMap
ChangeMap. replace("short", "long");
System.out.println("New HashMap: "
+ ChangeMap.toString());
Explanation:
From the above we have used the replace method to replace the value of the "short" key in the hashtable with "long" instead of the previous value "tall". We have used the printed the hashtable to the console using println and the ".toString()" method that we added to the function's parameter.
A Fast Critter moves twice as fast as a regular critter. When asked to move by n steps, it actually moves by 2 * n steps. Implement a Fast Critter subclass of Critter whose move method behaves as described.
Answer and Explanation:
The code:
FastCritter.java
Public class FastCritter
{
public static void main(string[]args)
{
Critter DoubleFast = new FastCritter();
DoubleFast.move(10);
System.out.println(DoubleFast.getHistory());
system.out.println(" the critter object will move to 20]");
}
}
in the above, the critter class is assumed to have been defined and the the object DoubleFast which moves twice the distance of the Critter was achieved by using the move method which was defined in the critter class. The move method takes the position of the Critter and adds the steps given to its parameter to the object's move thus getting twice the distance. The get history is assumed to get the history of positions and moves made by the object in an array as defined in the class
Lily is in her first year of undergraduate coursework and has not yet declared a major. She has attended a lot of career fairs and undergraduate major "open house" events to investigate her options. Marcia's theory of identity status suggests that the dimension Lily is most concerned with is the_____of 1 dimension.
Answer:
exploration
Explanation:
According to Marcia's theory of identity, the status suggests that the dimension Lily is most concerned with is the exploration dimension.
James E. Marcia who came up with the Marcia's theory of identity is a clinical and developmental psychologist. He also once taught at Simon Fraser University which is located in British Columbia, Canada and also in the State University of New York at Buffalo in Upstate, New York City.
James E. Marcia is also very much involved in clinical private practice, community consultation, clinical psychology supervision, and also in international clinical-developmental research and teaching.
5.19 LAB: Countdown until matching digits Write a program that takes in an integer in the range 20-98 as input. The output is a countdown starting from the integer, and stopping when both output digits are identical. Ex: If the input is:
Answer:
Following are the code to this question:
x = int(input())#defining a variable x for user input value
if(x>=20 and x<=98):#defining an if block that checks value is in between 20 to 98
while(not(x%10==x//10)):#defining while loop that seprate numbers and checks it is not equal
print(x)#print value
x-=1# decrease value by subtracting 1
print(x)# print value
else:#defining else block
print("The input value must lie in 20-98")#print message
Output:
36
36
35
34
33
Explanation:
In the above python program code, a variable x is declared, which is used to input the value from the user end. In the next step, a conditional statement is used in if block, it checks the input value is lie in 20 to 98, and to check its uses and logic date, if it is false it will goto else section in this, it will print a message. If the given value is true, inside if block a while loop is declared, that separately divide the value and check it is identical or not, if it is not identical it will print the value and checks its less value similarly.The program that takes in an integer in the range 20-98 as input. The output is a countdown starting from the integer, and stopping when both output digits are identical is as follows:
x = int(input("your number should be between 20 to 98: "))
while 20 <= x <= 98:
print(x, end='\n')
if x % 11 == 0:
break
x -= 1
else:
print("your number must be between 20 to 98")
Code explanation:The code is written in python
The first line of code, we store the users input in the variable x.Then while 20 is less than or equal to or less than and equals to the users input, we have to print the x value .If the users input divides 11 without remainder(the digit are the same) then we break the loop. The loop continue as we subtract one from the users valueThe else statement wants us to tell the user to input numbers between 20 to 98learn more on python code here: https://brainly.com/question/26104476