Carcass wrote:
If \(\sqrt[5]{a}=2\), what is the value of \(a^{-0.6}\)?
Given: \(\sqrt[5]{a}=2\)
In other words: \(a^{\frac{1}{5}}=2\)
In other words: \(a^{0.2}=2\)
Aside: Our goal is to find the value of \(a^{\frac{1}{5}}=2\)Raise both sides of our equation by the power of \(3\) to get: \((a^{0.2})^3=2^3\)
Simplify: \(a^{0.6}=8\)
Raise both sides of our equation by the power of \(-1\) to get: \((a^{0.6})^{-1}=8^{-1}\)
Simplify: \(a^{-0.6}=\frac{1}{8}\)
Or we can write: \(a^{-0.6}=0.125\)
Answer: 1/8 or 0.125