Question

will fan and medal
(give me a minute to put in the equation lol)

Answer 1

\[b^{-4}=\frac{ 1 }{ 81 } \] b = ?

Answer 2

It's using the rule:

\(x^{-1} = \dfrac{1}{x^1}\)

So in this case it would be:

\(\dfrac{1}{b^4}\)

So we have to find 'b', so what do you think it is?

Answer 3

We have to find:

\(b = \sqrt[4]{81}\)

Answer 4

to find square root do I divide?

Answer 5

The fourth root..

Answer 6

Just type in 'fourth root of 81' in Google, it should tell you :)

Answer 7

oh its 3

Answer 8

Yes, that's our answer.

Answer 9

\(\sf b = 3\)