Answer:
C
Step-by-step explanation:
The average rate of change of f(x) in the closed interval [ a, b ] is

Here [ a, b ] = [ - 10, 10 ], thus
f(b) = f(10) = 10² + 9(10) + 18 = 100 + 90 + 18 = 208
f(a) = f(- 10) = (- 10)² + 9(- 10) + 18 = 100 - 90 + 18 = 28, thus
average rate of change =
=
= 9
It's F because a quadrilateral is at those classifications
Answer:
~ 639.75 cm^3
Step-by-step explanation:
see pic
<h2>
Edit: I did this with the assumption that 12 was the diameter, if it's the radius disregard this please</h2>