Answer:
S + 43.5<=55
11.5mph
Step-by-step explanation:
S = S=SPEED
A. S + 43.5 <= 55
B. S + 43.5 <= 55
43.5-43.5= S<= 55
55-43.5= 11.5
= S + 43.5<=55
Speed of 11.5mph
=3
This is a triangle with the height 3x and the base 4.
So the area is A= 1/2 * height* base
A= 1/2 * 3x* 4= 6x
The answer is 6x
Hope that userful for you.
.. f (x) = 3x7 – x4 + 2x3 – 5x2 – 4.
Answer: $ 36.80