Question

I'm on the LAST Question if i mess up, im done. Please Help and you'll be awarded 20 points

Answer 1

Given:

$\frac{64}{81}=d^2$

All of the items are perfect squares, so we can take the square root of both sides easily:

$\sqrt{\frac{64}{81}}=\sqrt{d^2}$

Simplify.

$\frac{8}{9}=d$

OR

$-\frac{8}{9}=d$