Which value of b solves the equation? b ^-3 = 1/27 A. 81 B. 3 C. 9 D. 27 Please Explain the answer :)

asked May 7, 2015 106k views

2 votes

Which value of b solves the equation?

b^-3 = 1/27

A. 81
B. 3
C. 9
D. 27

Please Explain the answer :)

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4 votes

B^-3=
1/b^3 this way you get rid of that scary negative
you then need a value to give you 27 on the bottom which would be 3 or B

Graham Povey answered May 11, 2015

7.8k points

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