Concept explainers
In Exercises 59−64, write the specified quantity as a function of the specified variable. Remember that drawing a picture will help.
61. Volume of a Cylindrical Tank A cylindrical tank with diameter 20 ft is partially filled with oil to a depth of h feet. Write the volume of oil in the tank as a function of h.

To write: The volume of oil in the tank as a function of h .
The volume of the tank is equal to 100πh cube ft.
Given information:
A cylindrical tank with diameter 20 ft is partially filled with oil to depth of h feet.
Calculation:
The diameter of the cylindrical tank is 20 ft.
Then the radius of the cylindrical tank is 10 ft.
The depth is h ft.
Formula used:
The volume of the tank is given by
V=πr2h
Substitute r=10 and calculate the volume in terms of h below:
V=π(10)2h=100πh
Hence, the volume of the tank is 100πh cube ft.
Chapter 1 Solutions
PRECALCULUS:GRAPH...-NASTA ED.(FLORIDA)
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