Question

Please help pre alg find x

Answer 1

Answer:

x = 10

Explanation....

Answer 2

Answer: x = 5

Explanation:

using pythagorean theorem

a^2 + b^2 = c^2

x^2 + 12^2 = 13^2

x^2 + 144 = 169

x^2 = 169 - 144

x^2 = 25

find the square root of 25

x = 5