5/13t= -9
Then t =( -9*13) / 5
T=-23.4
Answer:
2/3, 1,2,4
Step-by-step explanation:
Answer:
Step-by-step explanation:
∠A + ∠B = 90 {∠A & ∠B are complementary}
x + 16 + x - 12 = 90
x + x + 16 - 12 = 90 {Combine like terms}
2x + 4 = 90 { Subtract 4 form both sides}
2x = 90 - 4
2x = 86 {divide both sides by 2
x = 86/2
x = 43
C and D
x^2 - 4x + 4 = (x-2)^2
x^2 + 10x +25 = (x+5)^2
