Question

Find the value of $\sqrt[3]{3\sqrt{0.000064}}$.

• A. $0.02$
• B. $0.2$
• C. $2$
• D. $0.002$

Answer 1

Answer: (B)

$0.2$

$=\sqrt[3]{3\sqrt{0.000064}}$

$=\sqrt[3]{3\sqrt{64\times {10}^{-6}}}$

$=\sqrt[3]{38\times {10}^{-3}}$

$=2\times {10}^{-1}$

$=0.2$