Question

Help me accidentally checked in

Answer 1

Answer:  b) 16

Step-by-step explanation:

$64^{\frac{2}{3}}=(2^6)^{\frac{2}{3}}=2^{\frac{12}{3}}=2^4=2\cdot \cdot 2\cdot 2\cdot 2=\boxed{16}$

Answer 2

Answer:

$\boxed{\bold{16}}$

Step By Step Explanation:

Factor: $\bold{64=4^3}$

$\bold{\left(4^3\right)^{\frac{2}{3}}}$

Apply Exponent Rule $\bold{\left(a^b\right)^c=a^{bc}: \ \left(4^3\right)^{\frac{2}{3}}=4^{3\cdot \frac{2}{3}}=4^2}$

$\bold{4^2}$

Refine

$\bold{16}$