The Volume V of a Right Circular Cone Varies Jointly

question 9

Multiple Choice

The volume V of a right circular cone varies jointly as the square of the radius r and the height h . Tell what happens to V when r is doubled.

• A)V is 4 times as large.
• B)V is 3 times as large.
• C)V is 2 times as large.
• D)V is 9 times as large.
• E)V is 6 times as large.

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Definitions:

Consumer Surplus

The gap between what consumers are ready and able to shell out for a good or service and what they indeed spend on it.

Equilibrium Point

An equilibrium in the market where demand meets supply, causing price levels to remain unchanged.

S And D Curves

Graphical representations of the relationship between quantities supplied and demanded at various prices.

Total Revenue

The total income a firm receives from the sale of its goods or services, calculated by multiplying the price by the quantity sold.