Question

4
$4 \sqrt{ \frac{16}{81?} }$
​

Answer 1

Step-by-step explanation:

$\sqrt[4]{16 \div 81}$

(16/81)^1/4

(2^4 / 3^4) ^1/4

(2/3)^4/4

(2/3)

Answer 2

[tex]
4 \sqrt{\frac{16}{81}} = 4 \frac{\sqrt{16}}{\sqrt{81}} \\
= 4 \times \frac{4}{9} \\
= \frac{16}{9}