3 years ago

What is the perimeter of the figure?

Mathematics

1 answer:

Nutka1998 [239]3 years ago

5 0

Answer:

B. 49 + 5π

Step-by-step explanation:

9 + 9 + 18 + 8 + 5 = 49

C = πd

d = 18 - 8 + 5 = 5

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3 years ago

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The mean height of married American women in their early twenties is 64.5 inches and the standard deviation is 2.5 inches. The m

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Answer:

The equation for regression line and predicting a husband's height for married couples in their early 20s

Equation: Y'=33.67+0.54*X'

Step-by-step explanation:

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Sy=2.7

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Y'=a+b*X'

so the slope of the regression line is the linear correlation coefficient multiplied by the standard deviation for y' divided by the standard deviation for x'

$b=r*\frac{S_{y}}{S_{x}}\\b=0.5*\frac{2.7}{2.5}\\b=0.54$