jacole22
13.03.2020 •
Mathematics
Simplify (-2)^-3
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Ответ:
-⅛
Step-by-step explanation:
(-2)^(-3)
(1/-2)^3
1/-8
-1/8
Ответ:
k = 10
Step-by-step explanation:
The external angle of a triangle is equal to the two opposite interior angles.
∠MYZ is an exterior angle of the triangle, thus
4k + 5 + 6k + 10 = 115, that is
10k + 15 = 115 ( subtract 15 from both sides )
10k = 100 ( divide both sides by 10 )
k = 10