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Snezhnost [94]
3 years ago
9

Determine the correct equation for the following verbal sentence: The total distance traveled, d, at a constant speed of 45 mile

s per hour is the product of the speed and the number of hours traveled, h. a. d = h + 45 c. 4072-01-01-03-00_files/i0210000.jpg b. d = 45h d. d = 45 - h Please select the best answer from the choices provided A B C D
Mathematics
2 answers:
lidiya [134]3 years ago
6 0
D=45h
It looks like that is option B
asambeis [7]3 years ago
4 0

Your answer is B..........

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Karo-lina-s [1.5K]

Answer:

a. Pearson Correlation

r= \frac{1}{4}  or 0,25

b. The regression equation is

Y = 6+ 0,5 *X

Step-by-step explanation:

a. Pearson Correlation

Using the equation for Pearson correlation:

r = \frac{SP}{\sqrt{(SS_{x} * SS_{y})} }

r= \frac{10}{\sqrt{(20 * 80)} }

r=\frac{10}{\sqrt{1600} }

r=\frac{10}{40} =\frac{1}{4} = 0,25

b. Regression

Using regression equation

1.  Y = a+ b *X

2. a= m_{y} - b* m_{x}

3. b= \frac{SP}{SS_{x} }

So replacing first 'b' because is content in 'a' equation

b= \frac{SP}{SS_{x} }

b= \frac{10}{20}

b= \frac{1}{2} = 0,5

Knowing 'b' can know 'a' and complete the equation

a= m_{y} - b* m_{x}

a= 10 - 0,5* 8

a= 6

Replacing in the equation 1:

1.  Y = a+ b *X

Y = 6+ 0,5 *X

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Step-by-step explanation:

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Step-by-step explanation:

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Answer:

44+54= 98

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Step-by-step explanation:

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