Respuesta :

Answer:

The value of 8m is 2

Step-by-step explanation:

step 1

Find the value of m

we know that

[tex]m^{-3} =64[/tex]

so

[tex]\frac{1}{m^{3}}=64\\ \\m^{3}=\frac{1}{64}\\ \\ m=\frac{1}{\sqrt[3]{64}}\\ \\m=\frac{1}{4}[/tex]

step 2

Find the value of 8m

[tex]8m=8(\frac{1}{4})=2[/tex]