0.
anything multiplied by 0 = 0.
A right angle is an angle with a measure of 90 degrees.
Answer:
18
Step-by-step explanation:
The average rate of change of f(x) in the closed interval [ a, b ] is

here [ a, b ] = [ 1, 5 ]
f(b) = f(5) = 3 × 5² = 75
f(a) = f(1) = 3 × 1² = 3, hence
average rate of change =
=
= 18
U just need to add it up like this 11+7+18+22+14+23.5=95.5 ft
have a nice day(: