Evaluate $\int _ { 0 } ^ { 9 } \int _ { 0 } ^ { 1 } \sqrt { x y } d y d x$

question 241

Multiple Choice

Evaluate $\int _ { 0 } ^ { 9 } \int _ { 0 } ^ { 1 } \sqrt { x y } d y d x$ .

• A)18
• B)9
• C)3
• D)1
• E)6
• F)12
• G)27
• H)36

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Definitions:

Marginal Utility

The incremental pleasure or value received from consuming one more unit of a good or service.

Marginal Utility Schedules

Tables or graphs that show the relationship between the quantity of a good consumed and the utility (satisfaction) that is gained from each additional unit.

Total Utility

The complete satisfaction or advantage gained from consuming a specified overall amount of a product or service.

Utility-Maximizing

A principle of economics that assumes consumers aim to achieve the highest level of satisfaction possible from their available resources.