Answer:
HERE IS YOUR ANSWER
Step-by-step explanation:
Use the mirror equation:
1/di + 1/do = 1/f
where di = -10 cm and f = +15 cm. (Note that di is negative if the image is virtual.)
Substitute and solve for do.
1/do + 1/(-10 cm) = 1/(15 cm)
1/do = 1/(15 cm) - 1/(-10 cm) = 5/(30 cm)
do = 6 cm
Hope it helps you
Regards,
Rachana
A $5,$10,$20,$50, or $100 bill is mapped to all the sets of coins that are the same as the total value of the bill. Tell whether this situation represents a function. Explain your reasoning. If the situation represents a function, give the domain and range.
Answer:
This situation represents a function. The domain is {A, B, C, D, E} and the range is {$5, $10, $20, $50, $100}.
Step-by-step explanation:
Firstly, we need to know what a function is:
It is simply something that relates an input to an output. Like for instance a mirror is a function that relates your face to your image. In lay terms we can call something a function if and only if it can relate one thing to another. Mathematically, a function is called a function if and only if every input has a distinct output, just as how one face can't produce two images at a time when looked at the mirror. The input is called the domain and output range.
Now, in the question we are told that all the bills are mapped – related in lay terms – to some set of coins that are exactly the same number of the bills. This means each bill has a distinct input. Here is a clearer picture:
A to 5 usd
B to 10usd
C to 20usd
D to 50usd
E to 100usd
Where A, B, C, D and E respectively stand for the distinct coins that are mapped to the distinct bill.
From here, each coin has it distinct output. Therefore it is a function.
The domain is {A, B, C, D, E} and the range is {$5, $10, $20, $50, $100}.
which of these groups values plugged into the TVM solver of a graphing calculator will return the same value for PV as the expression ($415)((1+0.003)^24-1)/(0.003)(1+0.003)^24
Answer:N=24; I%=3.6; PV = ; PMT = -415; FV=0; P/Y= 12; C/Y = 12; PMT:END
Step-by-step explanation:
Please solve the equation
Answer: c
Step-by-step explanation:
NEED NOW!!! If the two friends in excercise 2 race for 4 miles at their constant rates who will win the race.!!!
Answer:8
Step-by-step explanation:
Convert 1 inch into feet. Round your answer to the nearest hundredth.
Answer:search it
Step-by-step explanation:
asearch it
Given 14 – 2(x + 8) = 5x – (3x – 34), prove x = -9 what are the steps to be able to prove x=-9
Answer: x = -9
steps
Simplifying
14 + -2(x + 8) = 5x + -1(3x + -34)
Reorder the terms:
14 + -2(8 + x) = 5x + -1(3x + -34)
14 + (8 * -2 + x * -2) = 5x + -1(3x + -34)
14 + (-16 + -2x) = 5x + -1(3x + -34)
Combine like terms: 14 + -16 = -2
-2 + -2x = 5x + -1(3x + -34)
Reorder the terms:
-2 + -2x = 5x + -1(-34 + 3x)
-2 + -2x = 5x + (-34 * -1 + 3x * -1)
-2 + -2x = 5x + (34 + -3x)
Reorder the terms:
-2 + -2x = 34 + 5x + -3x
Combine like terms: 5x + -3x = 2x
-2 + -2x = 34 + 2x
Solving
-2 + -2x = 34 + 2x
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-2x' to each side of the equation.
-2 + -2x + -2x = 34 + 2x + -2x
Combine like terms: -2x + -2x = -4x
-2 + -4x = 34 + 2x + -2x
Combine like terms: 2x + -2x = 0
-2 + -4x = 34 + 0
-2 + -4x = 34
Add '2' to each side of the equation.
-2 + 2 + -4x = 34 + 2
Combine like terms: -2 + 2 = 0
0 + -4x = 34 + 2
-4x = 34 + 2
Combine like terms: 34 + 2 = 36
-4x = 36
Divide each side by '-4'.
x = -9
Plz do this one too 2(x+7)−2(x−10)
Answer:
34
Step-by-step explanation:
Distribute
2x+14-2x+20
Combine like terms
34
Answer:
34
Step-by-step explanation:
Remember to do PEMDAS, multiply the number out side of the parentheses with what 9s inside of them.
Ann's Ride
10
1. Ann went on a bicycle trip. The graph shows the
relationship between time and distance traveled by Ann.
9 8
a)
Write a function d(1) for her distance in miles
traveled in terms (1) of the time in hours.
6
b)
Find d(3)
distance in miles
5
c)
Draw a graph of Ann's speed in miles per hour
in terms of the time in hours.
4 3
d)
Write a function s(t) for her speed in
terms of the (1) time.
20 POINTS PLEASE HELP ME WITH GEOMETRY
Answer:
5: d
6: c
7: parallel
Which of the following documents were influenced by John Locke's principles?
A. MAGNA CARTA
B. U.S. Declaration of Independence
C. English Bill of Rights
D. Estates General
Answer:U.S Declaration of Independence
Step-by-step explanation:
Mrs. Snell's math test has twenty questions and is worth 100 points. The test consists of multiple choice questions worth 3 points each and short answer questions worth 11 points each. How many multiple choice questions are on the test? Explain how you determined your solution.
Answer:
The number of multiple-choice questions are 15.
Step-by-step explanation:
Mrs. Snell's math test has twenty questions and is worth 100 points.
The test consists of multiple-choice questions and short answer questions.
Let M represents the Multiple choice questions.
Let S represents the short answer question.
It is given that the total number of question are 20.
[tex]S+M=20[/tex] ...(1)
Also, multiple-choice questions worth 3 points each, and short answer questions worth 11 points each. The total worth of the test is 100 points.
[tex]11S+3M=100[/tex] ...(2)
Multiply equation (1) by 3 and subtract from equation (2).
[tex]11S+3M=100\\3S+3M=60\\\underline{-\:\:\: -\:\:\:\:\:\:\:\:-\:\:\:\:\:\:}\\8S\:\:\:\:\:\:\:\:\:\:\:\:\:=40\\S\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:=5[/tex]
The total number of short answers is 5.
Put S=5 in equation 1.
[tex]5+M=20\\M=15[/tex]
Hence, the number of multiple-choice questions are 15.
You Work at a carnival for 3.5 hours you earn 29.75 how much do you earn per hour
Answer:
8.5
Step-by-step explanation:
Divide
29.75 by 3.5 .
8.5
If SU= 2x - 12, find SU
In a weighted average, some values are worth more than others in computing an average value. A teacher gives a quiz, a test, and a final exam. The expression $\frac{q+3t+5f}{9}$ gives the weighted average of the scores where $q$ is the quiz score, $t$ is the test score, and $f$ is the final exam score. What is the weighted average for a student who scores 86 on the quiz, 75 on the test, and 80 on the final exam?
Answer:
The weighted average score of the student is 79
Step-by-step explanation:
Here, we want to calculate the weighted average score for the student.
To calculate this, we shall be using the given expression;
The expression to calculate the weighted average score is given as;
(q + 3t + 5f)/9
Thus using the scores of the student, we have;
(86 + 3(75) + 5(80))/9
= (86 + 225 + 400)/9 = 711/9 = 79
simplify (2x+1)^2
what is the answer?
Answer:
Step-by-step explanation:
4x^2+4x+1
To build a computer, you need to buy a motherboard for 120 dollars, a CPU for
100 dollars, RAM memory for 45 dollars, storage for 30 dollars, a case for 15
dollars, and a power supply for 50 dollars. What is the cost of building 10
computers?
I got 3600 dollars as my answer, is my answer correct?
Answer:
Your answer is correct. Good job!
Step-by-step explanation:
please help me the question is in the photo
-2 + 3x > -23 | x = ?
Answer:
Give Me Brainliet
Step-by-step explanation:
x= 9/8 =1.125
Answer:
3*x-2>-23
Step-by-step explanation:
i think thats the answer
The figure below shows a large rectangle with a small rectangle cut out of it.
What is the area of the shaded figure?
Answer:
56 cm²
Step-by-step explanation:
8*9=72
4*4=16
72-16=56
hope this helps!
5 and a half minus 7 equals
Answer:
-9/5; -1 4/5; -1.8
Step-by-step explanation:
what is the compound inequality x<10 and x>2
Answer:
[tex]2<x<10[/tex]
2x + 3 = x -4 thats my question
Answer: -7
Step-by-step explanation:
Subtract xx from both sides.
2x+3-x=-42x+3−x=−4
2 Simplify 2x+3-x2x+3−x to x+3x+3.
x+3=-4x+3=−4
3 Subtract 33 from both sides.
x=-4-3x=−4−3
4 Simplify -4-3−4−3 to -7−7.
x=-7x=−7
I will give brainlest
Sean wrote the expression 72 + 42. Rana used the greatest common factor of those two numbers to write an equivalent expression. Which expression did Rana write?
6(19)
6(12 + 7)
12(6 + 4)
2(36 + 21)
What is an equation of the line that passes through the points (-5,4) and (5, -8)?
if £2000 is placed into a bank account at a compund intrest per year of 3%, how much money will there by after 2 years
Answer:
£2120
Step-by-step explanation:
First, you need to find 3% of £2000
£2000 ÷ 100 = 20
20 x 3 = £60
Since you gain £60 per year, you gain £120 for two years
£2000 + £120 =
£2120
How do you prove that two lines are parallel
Answer:
they are side by side but not intersect
Answer:
If they are side by side and do not cross
Step-by-step explanation:
Hope this helps :D
-4 5/1 - 6 4/6=??? help!
Answer:
-15 2/3.
Step-by-step explanation: First off, I performed the equation -4 5/1 - 6 4/6, yielding -15.6. I then translated that to a fraction. How to do that, you ask?
Example #1
Convert 0.32 to fraction:
0.32 = 32/100
Find the greatest common divisor (gcd) of the numerator and the denominator:
gcd(32,100) = 4
Reduce the fraction by dividing the numerator and the denominator with the gcd:
0.32 = (32/4) / (100/4) = 8/25
Example #2
Convert 2.56 to fraction:
2.56 = 2+56/100
Find the greatest common divisor (gcd) of the numerator and the denominator:
gcd(56,100) = 4
Reduce the fraction by dividing the numerator and the denominator with the gcd:
2+56/100 = 2 + (56/4) / (100/4) = 2+14/25
In your problem the final answer would result in -15 2/3. Hope this answered your question.
Answer:
44
Step-by-step explanation:
-4 5/1 - 6 4/6 turn them into fractions you should get -20/1 - 144/6 then to subtract you have to have a comen denominater and it is 6 so 144/6 is okay but you need to do -20/1 x 6 and you get 120/6 so now we have -120/6 - 144/6 = 44 because a negitive and a negitive make a positive.
Pls help
Will award brainlist thing answer all the questions pls
Answer:
1. 5/-6
2. 1
3. 2/7
4. 5/3
5. 8/3
6. 3/-5
who is nepali prime minister
The prime minister of Nepal is K.P ( Khadga Prasad) Sharma Oli.
The present primeminister of Nepal is Sher Bhadur Deuba...............
what is the correct order of terms from largest to smallest: macromolecule element and monomer
Answer:A long molecule consisting of many similar or identical monomers linked together. it is attracted to any other element that has an electron that is also alone. Put the following systems in order from smallest to largest: polymer, atom, macromolecule, monomer. Atom, monomer, polymer, macromolecule.
Step-by-step explanation: