Answer:
-3
Step-by-step explanation:
-3 is correct, but why?
The reason is that the exponent 1/3 indicates a cube root and the cube root of -27 is -3.
[tex]x^\frac{1}{n}=\sqrt[n]{x}[/tex]
So [tex]x^\frac{1}{2}=\sqrt{x}[/tex]
[tex]x^\frac{1}{5}=\sqrt[5]{x}[/tex]
etc.
