Question

What is the value of x?

Answer 1

Answer:

x = 9

Step-by-step explanation:

12^2+x^2 = 15^2

==> x = 9

Answer 2

Answer:

9

Step-by-step explanation:

x = $\sqrt{c^{2} - a^{2} }$

x = $\sqrt{15^{2} - 12^{2} }$

x = $\sqrt{225 - 144}$

x = $\sqrt{81}$

x = 9