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3 years ago

What is the number of degrees in the measure of each exterior angle of a regular polygon of 18 sides?

1 answer:

6 0

Each angle would be 160 degrees. to get the answer to this you take the number of sides (n) and subtract 2 then multiply by 180 and divide by n

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Help me find the slope please guys Im struggling

tatuchka [14]

Answer:

negative 1

Step-by-step explanation:

$\frac{y2 - y1}{x2 - x1} = m$

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3 years ago

The length of a rectangle is two more than twice the width. the perimeter is 58ft. what is the area of the rectangle?

goldenfox [79]

58/2 = 29

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Length = 20 feet

width = 9 feet

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3 years ago

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Answer:

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2 years ago

Read 2 more answers

A sample was taken of the salaries of four employees from a large company. the following are their salaries, in thousands of dol

Free_Kalibri [48]

For given sample of salaries of four employees, the variance of their salaries is: 26 thousands of dollars

The formula for the variance is,

$S^2=\frac{\sum (x_i - \bar{x})^2}{n-1}$

where,

$S^2$ = sample variance

$x_i$ = the value of the one observation

$\bar{x}$ = the mean value of all observations

n = the number of observations

For given question,

n = 4

First we find the mean of their salaries.

(33 + 31 + 24 + 36 ) / 4 = 31

So, $\bar{x}=31$

Using the formula for variance ,

$S^2=\frac{(33-31)^2}{4-1}+\frac{(31-31)^2}{4-1}+\frac{(24-31)^2}{4-1}+\frac{(36-31)^2}{4-1}\\\\ S^2=\frac{4}{3} + \frac{0}{3} + \frac{49}{3} + \frac{25}{3} \\\\S^2= \frac{4+49+25}{3}\\\\S^2=\frac{78}{3} \\\\S^2=26$

Therefore, for given sample of salaries of four employees, the variance of their salaries is: 26 thousands of dollars

Learn more about the variance here:

brainly.com/question/13673183

#SPJ4

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2 years ago