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Oksanka [162]
3 years ago
5

The sum of interior angles of a regular polygon is 1980 degrees. How many sides does the polygon have?

Mathematics
1 answer:
Montano1993 [528]3 years ago
8 0
The formula for interior angle sum is 180(n - 2).
Backtrack it from that.
180(n - 2) = 1980.
1980 / 180 = 11 = n - 2.
11 + 2 = 13 = n.
The polygon has 13 sides.
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Answer:

Step-by-step explanation:

-6 - (-9)

1) Remove parentheses

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See attachted image for rules of positive and negative integers.

Source: YourDictionary

5 0
2 years ago
What is the square root of 72 simplified
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Answer: 6√2

Step-by-step explanation:

8 × 9 is 72.

8 can be simplied to 4 × 2.

And 4 can be simplified to 2 × 2.

So far there are three 2s and a 9.

9 can be simplified down to 3 × 3.

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6 0
4 years ago
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Need answers ASAP
a_sh-v [17]
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Hope this helps!
6 0
3 years ago
James bought the computer which was discounted from $350 to $273. What is the discount rate?
sasho [114]
<h3>Answer:  22%</h3>

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8 0
2 years ago
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A 
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C 
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<span>It is fixed until the next raise.

I hope my answer has come to your help. God bless and have a nice day ahead!</span>
4 0
3 years ago
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