Question

What is the value of the expression?



A.
9^−48

B.
9^−2

C.
9^2

D.
9^22

Answer 1

http://static.k12.com/bank_packages/files/media/mathml_164e888a93d316edd2595ad4d81b761496bf3017_1.gif

Answer 2

@DanJS

Answer 3

i think its C

Answer 4

Here you can apply just those couple rules we discussed already....

Answer 5

\[\frac{ 9^8 }{ 9^{-4}*9^{10} } = \frac{ 9^8 }{ 9^{-4+10} } = \frac{ 9^8 }{ 9^6 }\]

Answer 6

i just combined the powers on the like base in the bottom so far...

Answer 7

then recall, to move the bottom term to the top, you have to switch the sign on the power to negative

Answer 8

the final answer will be 9^(8-6)

Answer 9

so you were right!