3 years ago

Find the measure of an exterior angle of a decagon

1 answer:

6 0

$\bf \textit{sum of all exterior angles in a polygon}\\\\n\theta =360~~\begin{cases}n=\textit{number of}\\\qquad sides\\\theta =angle~in\\\qquad degrees\\[-0.5em]\hrulefill\\n=10\end{cases}\implies 10\theta =360\implies \theta =\cfrac{360}{10}\implies n=36$

You might be interested in

Does anybody know any of these work needs to be shown answer ASAP

fenix001 [56]

#30 and #31 are in y = mx + b. m = slope, and b = y-intercept.
30. slope = 2/3 y-intercept = 1
31. Slope = -9/5 y-intercept = -4
To make the x's get on the right side of the equal sign, subtract it on both sides.
32. 6x - y = -2
32. 6x - y - 6x = -2 - 6x
32. y = 6x - 2

5 0

3 years ago

Please help need asap

frozen [14]

Answer:

the answer is c

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

A bag contains green marbles and blue marbles, 18 in total. The number of green

Katena32 [7]

Answer:

Step-by-step explanation:

Let the number of blue marbles be x

The number of green marbles = 3x - 2

Total marbles= 18

x + 3x -2 = 18

4x - 2 = 18

4x = 18+2

4x = 20

x =20/4

x =5

The number of blue marbles = 5

The number of green marbles = 3*5 - 2 = 15 -2 = 13

5 0

3 years ago

A number is chosen at random from 1 to 50. Find the probability of selecting numbers with 4 in the tens places.

SpyIntel [72]

Answer:

1/5

Step-by-step explanation:

there are 5 groups

1. 1-9

2. 10-19

3.20-29

4.30-39

5.40-49

and 50

7 0

3 years ago

An initial amount of money is placed in an account at an interest rate of 3% per year, compounded continuously. After six years,

insens350 [35]

Let's call X the amount in the beginning.

we have X*1.03^6 = 1819.77

X = 1819.77 / 1.03^6

X ≈ 1524.03

6 0

3 years ago