Let a be the <span>other leg.
</span>
By the Pythagorean theorem:
Answer:
A, B, C, and E
Step-by-step explanation:
y = 4x - 20
8x - 2y = - 20 (divide everything by 2)
4x - y = -10
-y = -4x - 10
y = 4x - 10
4x - 10 = 4x - 20
0
-10
No solution
Step-by-step explanation: