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2 years ago

Find the value of the variable. Then find the angle measures of the polygon.

Mathematics

1 answer:

Anvisha [2.4K]2 years ago

7 0

First set up the equation (sum of the angles is 180)

2x + 2(x-1) + (5x +2) = 180

distribute:
2x + 2x -2 + 5x +2 = 180

combine like terms:
9x = 180
solve for x:

x = 20

SO:

2x° = 2(20) = 40 degrees
2(x-1)° = 2(20) - 2 = 40 - 2 = 38 degrees
5x + 2°= 5(20) + 2 = 100 + 2=102 degrees

check: 40 + 38 + 102 = 180

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The volume of a box is 8000 cubic millimeters. what is the edge length of the box?

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2 years ago

Sydney assembles 5/8 of a bracelet in 1/6 of a minute. Henrietta assembles 3/5 of a bracelet in 1/15 of a minute. Who will compl

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2 years ago

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Answer:

3.140

Step-by-step explanation:

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2 years ago

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You cannot remember your 4-digit bike-lock combination. What is the probability that you guess the combination correctly? (Enter

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1/10000 every try

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2 years ago

Divide.

algol13

Answer:

Answer in simplified form is - 10 1/2 .

Step-by-step explanation:

We have given,

(5 1/4) ÷ (- 2 1/2)

This can be simplified as :

(5 1/4) ÷ ( -2 1/2)

Since 5 1/4 = 21/4 and -2 1/ 2 = -5/2

So we can write,

(5 1/4) ÷ ( -2 1/2) = 21/4 ÷ ( - 5/2)

or (21/4) / (-5/2)

or ( 21/4) * (-2/5)

or -42/20

or -21/10

or - 10 1/2 , this is the answer

Hence we get answer in simplified form as -10 1/2

7 0

2 years ago