Answer:
(Choice A) A Yes
Step-by-step explanation:
a survey regarding truck engines found a positive correlation between the size of the engine and horsepower the engine produces. answer the following question based only on this information. true or false: it can be concluded that trucks with larger engines have greater horsepower.
False
• Correlation means that there is a relationship or patter between the two variables. A scatter plot displays the data about the two variables as a set of points in the x-y plane and it is a useful tool for determining if there is a correlation between the variables.
• Causation means the one event causes other event to occur. It can only be determined by designed experiment.
• While correlation and causation both can exist at the same time, correlation doesn’t imply causation.
• Causation explicitly applies only to cases where action P causes outcome Q whereas correlation is simply a relationship.
Correlation doesn’t prove causation.
There could be third variable associated with the size of engine which caused the truck to have greater horsepower. For example, it can be that manufacturers anticipate that consumers who wanted trucks with greater horsepower also prefered trucks with larger engines and therefore chooses to make trucks with larger horsepower.
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Look at the equations below. Tell whether each equation is True or False.
a. 2^9/2^-5=2^14
b. (5^0)^3 = 5^3
c. 4^5 x 2^5 = 8^10
d. 3^-9x3^7= 1/3^2
Answer: A. is true.
Step-by-step explanation: The left side 16384 is equal to the right side 16384, which means that the given statement is always true.
201.96+38.7+0.84
Eh this question I been on it for like 3 hours
I need help
Answer:
241.5
Step-by-step explanation:
201.96+38.7+0.84
okay this is another question for you my good friend jdoe0001
The independent variable: lengths of the sides
The dependent variable: the perimeter of a square,
K(5) = 20.
What is the Dependent and Independent variable of a Function?The dependent variable of a function is the output of a function that changes as a result of any change in the independent variable, which is the input of the function.
The input (independent variable) determines the output (dependent variable) of a function.
Therefore, we can make the following deductions:
The independent variable, x, represents lengths of the sides, and the dependent variable is the perimeter of a square, because the perimeter of the square depends on the length of the side of the square.
The function that relates to the variables is: K(x) = 4x
So, K(5) = 4(5) = 20.
This means, if 5 is the length of one of the sides of the square, then 20 is the perimeter of the square.
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find the percent of change when 25 meters change to 30 meters
Answer:
20 %
Step-by-step explanation:
There was a change from 25 m to 30 m. When we find percentage change of something, we first calculate the difference of final and initial value. Then divide it by initial value × 100.
Change:
= 30 m - 25 m
= 5 m
% change:
= 5 m / 25 m × 100
= 100 / 5
= 20 % (ans)
find the rise and the run
Answer:
down below
Step-by-step explanation:
The picture is a little blurry so the graph is hard to read. But I believe the answer is 7/8. The rose would be counting up or down the y axis and the run is counting forward or backward on the x axis.
Hope this helps! :)
Answer:
rise = 7, run = 8
slope = rise/run = 7/8
See attached picture for graph in case you have to plot
Step-by-step explanation:
Take two distinguishable points, (x1, y1) and (x2, y2) on the graph. Find the difference in their y values= y2 - y1. This will be the rise
Find the corresponding difference in the x values, x2 - x1. This will be the run
Divide the y difference by the x difference and you get rise/run which is the slope of the line
Two clear points are (x1 = 0, y1= -7) and (x2=8, y2=0)
(y2 - y1)/(x2 - x1)
= (0 - (-7)/(8 - 0))
= (0+7/(8 - 0) ==> 2 negatives make a positive
= 7/8 and that is rise/run
Rise = 7, run = 8
Picture shows rise and run if you want to graph it
what is the solution to this problem? 2 | x+5 | =4
Answer:
x = -7
x = -3
Step-by-step explanation:
Given the following question:
[tex]2\left|x+5\right|=4[/tex]
To find the answer to this question we have to remember to apply the absolute value. The absolute value means we have to convert any negative within the lines into positive.
[tex]2\left|x+5\right|=4[/tex]
[tex]\frac{2\left|x+5\right|}{2}=\frac{4}{2}[/tex]
[tex]\left|x+5\right|=2[/tex]
Apply absolute value:
[tex]x+5=-2[/tex]
[tex]x+5=2[/tex]
Solve each equation:
[tex]x+5=-2[/tex]
[tex]5-5=0[/tex]
[tex]-2-5=-7[/tex]
[tex]x=-7[/tex]
[tex]x+5=2[/tex]
[tex]5-5=0[/tex]
[tex]2-5=-3[/tex]
[tex]x=-3[/tex]
Your answers are "x = -3 and x = -7."
Hope this helps.
Answer:
x = -3
x= -7
Step-by-step explanation:
l x + 5 l = 4/2
(x + 5) = 2 or - (x + 5) = 2
- (x + 5) - 5 = 2 - 5
x = -3
- x - 5 = 2
- x - 5 + 5 = 2 + 5
-x = 7
x = -7
In which place is the digit in the number 5,341 that would it be changed to 5,841 how to how do the values of two numbers compare
We get that, the digit is in the 3rd place (hundreds).The difference between the numbers is 500.
We want to change the digit in the number 5,341 into 5,841.
We also need to find the difference between the numbers.
The number 3 is in the 3rd place (hundreds) of the number 5,341 as a digit will be replaced by 8 to form the number 5,841.
This means that 300 is replaced by 800 because the third place in both the numbers is of hundreds.
The difference between 800 and 300 is:
800 - 300 = 500.
Subtraction of 5,341 from 5,841 also yields 500.
Therefore, we get that, the digit is in the 3rd place (hundreds).The difference between the numbers is 500.
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You add 50 grams of solvent to paint. If 50 grams equals 1 part, how many grams
of paint do you need? (Do not label your answer with grams.)
Given that 5x8y = 29
Find y when x = -1
Give your answer as an improper fraction in its simplest form.
Estimate the quotient of 538 divided by 96 by using two methods 
The two methods for estimation of the quotient of 538 divided by 96 is being explained.
We are given that:
538 ÷ 96
We need to estimate the quotient of 538 ÷ 96 by using two methods.
The first method can be that we first estimate the divisor and the dividend to the nearest tens and then perform the division.
538 will be rounded off to 540 and 96 will be rounded off to 100.
So, it becomes:
540 ÷ 100
= 5.4
This will again be rounded off to 5
= 5
The second method will be that we first perform the division and then round off.
538 ÷ 96 = 5.61
Rounding off, we will get:
= 6.
Therefore the two methods for estimation of the quotient of 538 divided by 96 is being explained.
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Tom drives 8 1/2 miles every 1/30 hour. How many miles can he drive in 3 hours
In 3 hours Tom drives 243 miles.
What is speed?The rate at which an object's position changes in any direction. Speed is defined as the ratio of distance traveled to time spent traveling. Because it has only one direction and no magnitude, speed is a scalar quantity.So, to find how many miles Tom can drive in 3 hours:
Given: Tom drives 81/2 miles every 1/30 hour.
81/2 miles = 40.5 miles1/30 hours = 30 minutesSo, in 30 minutesTom drives 40.5 miles.
Then, in 1 hour Tom will drive 40.5 + 40.5 = 81 miles.Miles Tom will drive in 3 hours = 81 × 3 = 243 miles.Therefore, Tom drives 243 miles in 3 hours.
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use the accompanying statcrunch session to obtain a simple random sample of 5 high schools in the city of chicago.
Using sampling concepts, one sample of 5 high schools in the city of Chicago is given by:
Englewood Stem, Hyde Park, Lake View, Marshall, Noble - UIC.
What is the missing information?The problem is incomplete, but researching it on a search engine, it gives us a list of 15 high schools in Chicago, and asks us to take a sample of 5.
What is population and sample?Population: Collection or set of individuals or objects or events whose properties will be studied.Sample: The sample is a subset of the population, and a well chosen sample, that is, a representative sample will contain most of the information about the population parameter. A representative sample means that all groups of the population are inserted into the sample.Hence, from the concepts of sample and populations, the sample of 5 means that we have to select 5 schools from the 15 listed, hence they are:
Englewood Stem, Hyde Park, Lake View, Marshall, Noble - UIC.
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The average of five numbers is 72, two of them are 70 and 74. Find the average of the other three numbers.
The average of the other 3 numbers is 72.
Average or mean is a measure of central tendency which calculates the central point of a data-set.
Average of a set of numbers is calculated by taking the sum of the numbers and dividing it by the total frequency of the numbers.
If 3 numbers a , b and c are taken then the average is equal to
(a+b+c) ÷3
Given average of 5 numbers is 72.
Therefore the sum of the numbers is 72 × 5 = 360
Two of the numbers are 70 and 74 .
Sum of the remaining 3 numbers = 360 - (70 + 74) = 360 - 144 = 216
Average of the 3 numbers = 216 ÷ 3 = 72
Therefore the average of the remaining 3 numbers is 72.
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what is 2.3,3.3% and 2/3 in oder greatest to least.
2.3,3.3% and 2/3 in order of greatest to least is 3.3% > 2/3 > 2.3.
What is descending order?Arrangement in a series that begins with the greatest or largest and ends with the least or smallest.
Now the given numbers are,
2.3,3.3% and 2/3
Converting them into decimals we get,
2.3 = 2.300
3.3% = 0.033
2/3 = 0.667
Arranging them from greatest to least we obtain,
0.033 > 0.667 > 2.3
Thus, the given numbers from greatest to least are,
3.3% > 2/3 > 2.3
Hence, 2.3,3.3% and 2/3 in order of greatest to least is 3.3% > 2/3 > 2.3.
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A rectangular auditorium seats 1598 people. The number of seats in each row exceeds the number of rows by 13. Find the number of seats in each row.
Answer(with steps pls)
Answer:
b. No
Step-by-step explanation:
7/6 can be changed to an equivalent ratio(fraction) by multiplying by the same number on top and on the bottom.
example:
7/6 = 7×3 / 6×3
= 21/18
21/18 is equivalent to 7/6.
7 doesn't even go into 52 for one thing. But 6×8 is 48 so try 8.
7/6 = 7×8 / 6×8
= 56/48
56/48 is equivalent to 7/6, not 52/48
5/6=1/3+d
omg help mee
Answer:
[tex]d=1/2[/tex]
How to solve:
Group.Find d.Step-by-step explanation:
[tex]\frac{5}{6}=\frac{1}{3}+d\\\frac{1}{3}+d=\frac{5}{6}[/tex]
Group
[tex]\frac{1}{3}+d=\frac{5}{6}\\\frac{1}{3}+d-\frac{1}{3}=\frac{5}{6}-\frac{1}{3}\\d+\frac{1}{3}+\frac{-1}{3}=\frac{5}{6}-\frac{1}{3}\\d+\frac{1-1}{3}=\frac{5}{6}-\frac{1}{3}\\d+\frac{0}{3}=\frac{5}{6}-\frac{1}{3}\\d+0=\frac{5}{6}-\frac{1}{3}\\d=\frac{5}{6}-\frac{1}{3}\\d=\frac{5}{6}+\frac{-1\cdot 2}{3\cdot 2}\\d=\frac{5}{6}+\frac{-1\cdot 2}{6}\\d=\frac{5}{6}+\frac{-2}{6}\\d=\frac{5-2}{6}\\d=\frac{3}{6}\\d=\frac{1\cdot 3}{2\cdot 3}\\d=\frac{1}{2}[/tex]
Hope it helps.
For the piecewise-defined function f(x) =
7, x>3
5x-3, XS3
find two x-values that have the same y-value and the sum of the x-values is 10.
.
The two such x-values are 2 and 8.
The piecewise-defined function is :When x is greater than 3, f(x) equals 7.When x is less than or equal to 3, f(x) equals 5x-3.We need to get the same y-values.So, we will equate the two parts of the above piecewise-defined function.7 = 5x-35x = 10x = 2One of the x-values is 2.We are told that the sum of the x-values is 10.So, the second x-value is 10-2 = 8.Thus, the two x-values that have the same y-value and the sum of the x-values is 10 are 2 and 8.To learn more about functions, visit :
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two sides of a right triangle measure 222 units and 444 units. 2\text{ units}2 units4\text{ units}4 units what is the area of the square that shares a side with the third side of the triangle?
With the help of Pythagoras Theorem for triangles, we get that the possible areas of the square are: 12 sq. units and 20 sq. units, according to the cases mentioned.
What is Pythagoras Theorem?According to the Pythagoras Theorem, in a right angled triangle, the areas of the squares on the other two sides add up to the size of the square whose side is the hypotenuse.
Given:
Sides of a right triangle are 2 and 4 units.
To find: Area of a square that shares a side with the third side of the triangle.
Finding:
There can the following cases:
If 2 and 4 units are the lengths of the perpendicular sides.
Then, by Pythagoras Theorem, -
[tex]H^{2} = 2^{2}+4^{2}\\ H^{2} = Side^{2}\\H=Side \\H= \sqrt{4+16} \\H= \sqrt{20} \\H= 2\sqrt{5}[/tex]
Hence, the area of the square = side² = 20 units²
If 4 units is the length of hypotenuse.
Then, by Pythagoras Theorem,
[tex]4^{2} = 2^{2} + A^{2} \\16 - 4 = A^{2} \\= \sqrt{12}\\[/tex]
side of triangle = [tex]\sqrt{12}[/tex]
Hence, the area of the square = side² = 12 units²
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operation of 12 less than x
you are about to buy a calculator for $10, and the sales-person tells you that the model you want to buy is on sale for $5 at the store’s other branch, which is a 20 minute drive away.
Answer:
The question is incompleye. Do elaborate?
Please help!! State which property of equality justifies the statement:
If 7x=28, then x=4.
The property of equality justifies the given statement is Transitive property of equality.
Given,
The statement:
If, 7x = 28,
then, x = 4
We have to find the property of equality that justifies this statement:
The transitive property of equality formula is given as follows:
If y = z and x = y, x must be z. Where items belong to the same category as x, y, and z. For instance, if a line segment's measurement is represented by "x," then its measurement should also be represented by "y" and "z."
The property of equality that justifies this statement If, 7x = 28,
then, x = 4 is transitive property of equality.
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Shawn stated that 5x + 2 is equal to 7x . Is Shawn's claim, correct? EXPLAIN.
Need answer asap
"Shawn stated that 5x+2 is equal 7x" its is an incorrect statement, because we can only add like terms.
Given,
The statement
5x+2 is equal to 7x
Here 5x and 2 are not like terms. So we can't add them together.
So the given statement is incorrect
5x+2 is not equal to 7x
Hence, "Shawn stated that 5x+2 is equal 7x" it is an incorrect statement, because we can only add like terms.
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I will Mark Brainlist ...Find the length of p. Please Help its Math question i will Mark Brainlist !!
[tex]{ \qquad\qquad\huge\underline{{\sf Answer}}} [/tex]
Here we go ~
Let's use Trigonometric ratios to find p :
[tex]\qquad \sf \dashrightarrow \: \cos(60) = \cfrac{6}{p} [/tex]
[tex]\qquad \sf \dashrightarrow \: \dfrac{1}{2} = \dfrac{6}{p} [/tex]
[tex]\qquad \sf \dashrightarrow \: p = 6 \times 2[/tex]
[tex]\qquad \sf \dashrightarrow \: p = 12 \: \: units[/tex]
how many solutions does this equation have?
2y+20y-15=19+20y
Answer:
1 solution
Step-by-step explanation:
2y + 20y - 15 = 19 + 20y , that is
22y - 15 = 19 + 20y ( subtract 20y from both sides )
2y - 15 = 19 ( add 15 to both sides )
2y = 34 ( divide both sides by 2 )
y = 17
Answer:
Step-by-step explanation:
Answer
one
Proof
2y + 20y - 15 = 19 + 20y Combine the left side.
22y - 15 = 19 + 20y Add 15 to both sides
22y - 15+15 = 19 +15 + 20y Combine
22y = 34 + 20y Subtract 20y from booth sides
22y-20y = 34 + 20y-20y Combine
2y = 34 Divide both sides by 2
2y/2 = 34/2
y = 17
That's the only solution you get. The number of solutions to any equation (with certain exceptions) is the highest power on the variable.
x^2 + 2x - 8 has 2 solutions (from the x^2)
x^3 + 3x^2 + 2x + 15 = y has three solutions
Bamboo the elephant weighed 235 lb at birth. Each month Bamboo has gained 180 lb.
If Bamboo now weighs 1495 lb, how old is she?
please help yall
Answer:7lb
Step-by-step explanation:
7x180=1260lb
1260+235=1495lb
Please Help Important!!!!!!
Seeing that substituting the value x ≤ -2, did not yield a result that is correct with the equation x5 +7 > x3 we can say that Sam's conjecture is incorrect
Given data
x ≤ -2
x5 +7 > x3
How to test Sam's conjectureSam's conjecture is tested by substituting the value x ≤ -2 into the equation x5 +7 > x3. If the result is in accordance with the equation then Sam's conjecture is correct, however if the result is not in accordance with the equation the Sam's conjecture is incorrect.
The substitution will give
( -2 )^5 + 7 > ( -2 )^3
-32 + 7 > -8
-25 > -8 (since -25 is less than -8, Sam's conjecture is incorrect )
Seeing that substituting the value x ≤ -2, did not yield a result that is correct we can say that Sam's conjecture is incorrect
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I need help with 47 please
Answer:
25 students and 40%
Step-by-step explanation:
Three numbers have absolute values of 2,4, and 9. The product of all the numbers is positive.
A. Find the product
B. Find the different ways to write the signs of the numbers to give a positive product. Tell how many different ways there are in all.
Answer:
what you have to do is multiply 2 times 4 which is 8 and multiply the 8 by 9 which is 72
Step-by-step explanation:
2*4 =8
8*9=72
72 plus 8 is 80