Answer:
f(h(x)) = 2x - 4
Step-by-step explanation:
Substitute x = h(x) into f(x), that is
f(h(x))
= f(2x + 3)
= 2x + 3 - 7
= 2x - 4
Answer:
70
Step-by-step explanation:
if the train is traveling 90 miles in 2 hours then its going 45 mph so 25 + 45 = 70 and 70 mph is 140 in 2 so then the equation is true
Ratios can be written in multiple ways such as
a:b
a to b
a/b
So we can write yours in those three ways:
8.4:4.4
8.4 to 4.4
8.4/4.4
replace the numbers inside () for x
f(4) = -4(4)-3 = -16 -3 = -19
G(-4) = 2(-4)^2 -3(-4) = 44
