Question

$\frac{x}{\sqrt{512}}=\frac{\sqrt{128}}{x}$find x

• A. 17
• B. 16
• C. 18
• D. 14

Answer 1

Answer:

B. 16

$x^2=\sqrt{512}\times\sqrt{128}=16\sqrt2\times4\sqrt8$

$=64\times4=256$

$x=16$