Solve the Problem $\mathrm { P } ( \mathrm { x } , \mathrm { y } )$

question 209

Multiple Choice

Solve the problem.
-Find the average distance from a point $\mathrm { P } ( \mathrm { x } , \mathrm { y } )$ in the annular region $4 \leq \mathrm { x } ^ { 2 } + \mathrm { y } ^ { 2 } \leq 16$ to the origin.

• A) \(\frac { 44 } { 9 }\)
• B) \(\frac { 28 } { 9 }\)
• C) \(\frac { 11 } { 2 }\)
• D) \(\frac { 7 } { 2 }\)

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Definitions:

Average Total Costs

The total cost of production divided by the number of units produced, representing the per-unit production cost.

Marginal Costs

The charge for generating one more unit of a product or service.

Average Fixed Costs

The total fixed costs of production divided by the quantity of output produced, indicating how fixed costs change with different levels of production.

Marginal Costs

The increase in total cost that arises from an extra unit of production.