Answer:

Step-by-step explanation:
d = 
d = 
d = 
Answer:
d
Step-by-step explanation:
base² + Altitude² = Hypotenuse²
x² + 9² = 13²
x² + 81 = 169
x² = 169 - 81
x² = 88
x = 

Answer:
x+3 = x+3
Step-by-step explanation:
No matter what you plug into x, both sides will be the same.
Answer:
zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
Step-by-step explanation: