Question

Plz ASAP Which expression is equivalent to -8

A) -2^-3

B) (-1/2)^-3

C) (1/2)^-3

D) 2^-3

Answer 1

Option "B" is the correct answer to the following question.

Explanation:

`((-1)/(2) )^(-3)`

-2\times -2\times -2

`((1)/(a) )^(-m)= a^m`

So,

`((-1)/(2) )^(-3) = (-2)^3\\\\(-2)^3 = -2* -2* -2\\\\ -2* -2* -2=-8`

Therefore, Option "B" is the correct answer