Answer:
B
Step-by-step explanation:
The average rate of change of f(x) in the closed interval [ a, b ] is
here [ a, b ] = [ 2, 4 ]
f(b) = f(4) = 16 ← from graph
f(a) = f(2) = 4 ← from graph
average rate of change = = = 6
254 cubic feet.
It is given that the a cylindrical tank is 6 feet across and 9 feet deep. It means
Diameter of cylinder = 6 feet
Radius of the cylinder = 6/2 = 3 feet
Height of the cylinder = 9 feet
The volume of a cylinder is
where, r is radius and h is height of the cylinder.
Substitute r=3 and h=9 in the above formula.
We need to find the maximum number of cubic feet. So approx the value to a whole number.
Therefore, the maximum number of cubic feet of paint the tank will hold is 254 cubic feet.