Answer
The integral diverges.
Work Step by Step
We have
$$
\int_{0}^{\infty} (x+5)^{-1/3} dx=\int_{0}^{\infty} (x+5)^{-1/3} d(x+5)\\
=\frac{1}{2/3}(x+5)^{2/3}|_0^{\infty}=\frac{3}{2}(\infty-5^{2/3})=\infty
$$
Hence, the integral diverges.