Question

Please help me with 1,2,3,4,5,6,7,8,9 tell me how u get it and the answer please I really need help

Answer 1

Answer:

1) x = 15

Step-by-step explanation:

We use the Pythagorean thm for these questions. Where a and b are the legs (So order doesn't matter), and where c is the hypotenuse

1)

a² + b² = c²

9² + 12² = x²

81 + 144 = x²

x² = 225

You square root each side so you can get rid of the exponent on x.

$\sqrt{x^2} =\sqrt{225}$

x = 15