Step-by-step explanation:
(a○b)(x) is the same as a(b(x)).
it is really that simple.
first you calculate the result of the inner function, and then that result is the input for the outer function.
that's it.
so,
(w○u)(2) = w(u(2))
u(2) = -2 -1 = -3
w(-3) = 2×(-3)² + 1 = 2×9 + 1 = 19
so, 19 is the first answer.
(u○w)(2) = u(w(2))
w(2) = 2×2² + 1 = 2×4 + 1 = 9
u(9) = -9 - 1 = -10
so, -10 is the second answer.
Answer:
zoin in I am live and thecode is there in my question
Answer: t=10
Step-by-step explanation:
FOIL 8(2t-6)= 16t-48
Combine like terms 3t+16t-48=2+14t becomes 19t-48=2+14t
Put all t's on same side 19t-14t=2+48
5t=50 Divide by 5 on each side to have t by self
in 4 minutes it changed 8 feet
so 8/4 =2 feet per minute change
and since it dropped it would be a negative change so -2 feet per minute
Answer:
Yes
Step-by-step explanation:
