Question

What’s the value of x???

Answer 1

C. x=15

Explanation:

Use the Pythagorean Theorem:

`a^(2) +b^(2) =c^(2)`

Plug in the known values:

`9^2+12^2=c^2`

Simplify:

`81+144=c^2`

Solve:

`255=c^2`

`√(225) =c^`

`15=c`