Question

Three to what power equals 1/387420489

Answer 1

is tht 1 over 387420489

Answer 2

Yes.

Answer 3

do you have chocies

Answer 4

No. I solved a bit of the question, but I need help with this part.

Answer 5

can you post the question instead?

Answer 6

i was wondering like what type of question is that lol

Answer 7

Okay. Hang on...

Answer 8

Three to what power is equal to (-27)^-6?

Answer 9

This is for my pre-algebra class.

Answer 10

when you solve (-27)^-6 you get 1 over 387420489 so the question is what power to 3 gets that? hmm

Answer 11

ya

Answer 12

alright le me think lol

Answer 13

(-27)^(-6)=3^x
(27)^(-6)•(-1)^(-6)=3^x
(27)^(-6)•(1/(-1)^(6))=3^x
(27)^(-6)•(1/1)=3^x
(27)^(-6)=3^x
(3^3)^(-6)=3^x
(3)^(-6•3)=3^x

Answer 14

All I know is that the exponent is going to be negative. I have a hard time with negative exponents. :(

Answer 15

this is a problem where you do not expand to get that huge number (making the problem very hard to figure out)

they want you to use "rules of exponents" (i.e. tricks!)

Answer 16

@booklover40 thats what i came up with

Answer 17

Thanks!

Answer 18

yw

Answer 19

It was right! Thank you so much!

Answer 20

\[\frac{1}{3^n}=\frac{1}{387420489} \]n = 18