Round your answer to the nearest thousandth PLEASE LOOK!

Answer:
0.5
Step-by-step explanation:
[tex] y = f(x) = (\dfrac{1}{8})^x [/tex]
For x = 1/3,
[tex] y = f(\frac{1}{3}) = (\dfrac{1}{8})^\frac{1}{3} = \sqrt[3]{\dfrac{1}{8}} = \dfrac{1}{2} = 0.5 [/tex]