Hillary needs to know if the triangle shown is a right triangle. Which equation should she use to help?
5
4
3
0 42 + 32 = 52
O 42 +52 = 32
O V3+ 14 = 15
042 – 32 = 52
PLEASE HELP

1. evaluate 8x(2)y9(-2) for x=-1 and y=2 2. simplify the equation. -() 3. simplify the expression. [tex]\frac{5}{x(-2) y9(5)}[/tex]

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