Question

Help me please. I don’t understand at all. I’m stressing. Like what?!?!?!

Answer 1

Answer:

z = $\sqrt{117}$

Step-by-step explanation:

find 'y' first by using the altitude rule:

y/4 = 9/y

cross-multiply:

y² = 4(9)

y² = 36

y = $\sqrt{36}$ = 6

Find 'z' by using the Pythagorean Theorem with legs equal to 6 and 9

6² + 9² = z²

36 + 81 = z²

117 = z²

z = $\sqrt{117}$