Answer:
Y= 5
Step-by-step explanation:
X is twenty
2x+6x+20=180
8x=160
X=20
<span>B. The longer leg is times as long as the shorter leg.
</span> <span>C. the hypotenuse is twice as long as the shorter leg.</span>
F(x) = x² + x - 20 = x² + 5x - 4x - 20 = x(x + 5) - 4(x + 5) = (x + 5)(x - 4)
f(x) = 0 ⇔ (x + 5)(x - 4) = 0 ⇔ x + 5 = 0 or x - 4 = 0 ⇒ x = -5 or x = 4
Answer: C. x = -5 and x = 4.
Answer:24
Step-by-step explanation:
