alexmoy45p8yd7v
10.07.2019 •
Mathematics
If x+3 is a even integer, which of the following is not an even integer? a. 2x+2 b. 2x+3 c. x-3 d. 3x-1
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Ответ:
Ответ:
13 sides
Step-by-step explanation:
1980 = (n − 2)×180 Formula for number of sides
n − 2 = 1980/180 Divide both sides by 180
n - 2 = 11
+ 2 + 2 Add 2 to both sides
n = 13