Answer:
x = 7.48
Step-by-step explanation:
You need to use the Pythagorean theorem to solve this problem.
leg^2 + leg^2 = hypotenuse^2
a^2 + b^2 = c^2
5^2 + x^2 = 9^2
25 + x^2 = 81
subtract 25 from both sides.
x^2 = 81 - 25
x^2 = 56
Square root both sides.
x = sqroot(56)
x = 7.48
