Question

If m^-3=64, then 8m=​

Answer 1

The value of 8m is 2

Explanation:

step 1

Find the value of m

we know that

`m^(-3) =64`

so

`(1)/(m^(3))=64\\ \\m^(3)=(1)/(64)\\ \\ m=\frac{1}{\sqrt[3]{64}}\\ \\m=(1)/(4)`

step 2

Find the value of 8m

`8m=8((1)/(4))=2`