Question

Question #46e8f

Answer 1

`1/2401`

Explanation:

`(1/4)^(2x) = (1/(2^2))^(2x)=(2^(-2))^(2x)`

`=2^(-4x) = (2^x)^(-4)`

Since it's given that `2^x=7`, we can substitute to get:

`(2^x)^(-4) = (7)^(-4) = 1/2401`