1,760,000 is the rounded to ten thousand answer.
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Answer:
2x
Step-by-step explanation:
Combine the négative and get -5x+7x then combine to get 2x.
<h3>
Answer: 20 sides</h3>
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Work Shown:
x = exterior angle
9x = interior angle
interior + exterior = 180
9x+x = 180
10x = 180
x = 180/10
x = 18
n = number of sides
n = 360/x
n = 360/18
n = 20
There are <u>20</u> sides to the regular polygon.
Side notes:
- The formula to determine n only works for regular polygons.
- A polygon with 20 sides is known as an icosagon.
- Any pair of adjacent interior and exterior angles are supplementary. They add to 180 degrees.
16) you are right
3x-4=2x+6
x=10
17)
1st segment = x
2nd segment = 2x
3d segment = 4x+3
equation x+2x+4x+3=38
7x = 38-3
7x=35
x=5
First segemnt = 5 inch
2nd segment 2x = 2*5 = 10 inch
3d segemnt 4x+3=4*5+3=23 inch