Answer:
Step-by-step explanation:
11
Well there is 24 hours in a day so 24 - 15 = 9. So he spends 9 hours awake.
8x^2 - 16x - 15 = 0
x = [ -(-16) +/- sqrt((-16)^2 - 4*8*-15) / ] 2*8
= 2.696, -0.696
Answer:
(x , y)=(0 , -2)
Step-by-step explanation:
F(x) = 5x
for f(7) you replace x with 7 so it will be : f(7) = 5(7) = 35
