Question

HELP! LOTS OF POINTS

Answer 1

Use the equation=
x^2+5^2=9^2
x^2+25=81
x^2+25-25=81-25
x^2=56
$\sqrt{x} = \sqrt{56}$
x=7.48331477355

Answer 2

Hypotenuse^2 = unknown leg^2 + known leg^2
9^2= x^2+5^2
9^2-5^2=x^2
√56=7.48