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2 years ago

5 Evaluate the expression for r = 2. 12

Mathematics

1 answer:

LenKa [72]2 years ago

5 0

Answer:

Incomplete Question

Step-by-step explanation:

Your question is incomplete. There is no equation to plug (r) into.

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Lilit [14]

The answer is b because the slope is 2 and the y intercept is 9

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3 years ago

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telo118 [61]

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1 year ago

What is the answer to 5 1 x 10=when it involves multiplication do you times first and then add?

fiasKO [112]

5+1 times 10=???

order of operations
multiplcation comes before addition
so yes, multiply first

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3 years ago

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

SSSSS [86.1K]

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:

r=0.5

x'=64.5

Sx=2.5

y'=68.5

Sy=2.7

General regression line equation is:

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'

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

The intercept with axis y is the mean of the decreased by the product of the slope and the mean of x

$a=y'-b*x'\\a=68.5-0.54*64.5\\a=33.67$

The equation regression line then is:

Y'=33.67+0.54*X'

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3 years ago

Write 235 using powers of 10

vaieri [72.5K]

Answer:

(10^2)*2, 10*3, 10/2

Step-by-step explanation:

Thats my best guess to your very vague question

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2 years ago