Answer:
7
Step-by-step explanation:
280=40t/40
t=7
F(x)= -8x²
f(-3)= -8* (-3)²
f(-3)= -8 * 9
f(-3)= -72
F(x) - g(x) = -2x^3 - 6x^2 + 9x
Answer:
sin∅ = 12/13
Step-by-step explanation:
use pythagorean theorem to find the missing side
a² + 5² = 13²
a² = 13² - 5²
a² = 169 - 25
a² = 144
a = 12
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Sin∅ = opp/hyp
sin∅ = 12/13