Question

what is 5 sqrt x =81.2 answer

Answer 1

\[5 \sqrt{x} = 81.2\]You want to isolate x on one side of the equation. Since we have 5 times the square root of x, we'll start by dividing both sides by 5:
\[\sqrt{x}=16.24\]Now we only need one more step to isolate x, which would be to square both sides to eliminate the square root. Square both sides and you'll have your answer.