https://static.k12.com/bank_packages/files/media/mathml_5f7b7bbce18721a670b2dc7cf56c8c68d4f4da69_1.gif

A. 3

B. 9

C. 81

D. 27

Question

https://static.k12.com/bank_packages/files/media/mathml_5f7b7bbce18721a670b2dc7cf56c8c68d4f4da69_1.gif

  A. 3   

  B. 9   

  C. 81   
  
  D.   27

yoloshroom · Answer

b^-3=1/27
b^-3 is like saying b*1/3
so we can say b/3=1/27, can you solve fromt here?

kfireangel · Answer

no, not rlly

kfireangel · Answer

c maybe? or b?

yoloshroom · Answer

It be A m'lady, give me a minute to think of an easy way to explain, or if you're content with A take it ;)

kfireangel · Answer

you can explain if you like :)

kfireangel · Answer

actually, i do need an explanation XD

yoloshroom · Answer

Lol no problem ull have to give me a minute lol, not even sure how i got my answer.

yoloshroom · Answer

lol im stupid , got it.
my equation was wrong.
B^-3=1/27
1/b^3=1/27
so b^3=27 (LCD multiplication)
Cube root both sides, 
b=3 :) (3*3=9*3=27,,)