From a Tract of Land, a Developer Plans to Fence

question 149

Multiple Choice

From a tract of land, a developer plans to fence a rectangular region and then divide it into two identical rectangular lots by putting a fence down the middle. Suppose that the fence for the outside boundary costs $6 per foot and the fence for the middle costs $4 per foot. If each lot contains 4,600 square feet, find the dimensions of each lot that yield the minimum cost for the fence. Round your answer to two decimal places. ​​

• A)Dimensions are 42.19 ft for the side parallel to the divider and 109.03 ft for the other side.
• B)Dimensions are 109.03 ft for the side parallel to the divider and 42.19 ft for the other side.
• C)Dimensions are 67.82 ft for the side parallel to the divider and 67.82 ft for the other side.
• D)Dimensions are 58.74 ft for the side parallel to the divider and 78.32 ft for the other side.
• E)Dimensions are 78.32 ft for the side parallel to the divider and 58.74 ft for the other side.

Recognize various categories of usability problems.

Understand the concept and importance of prototypes in usability testing.

Distinguish between various types of usability evaluation methods and data.

Understand the definition and classification of IQ scores, including identifying scores for giftedness and mental retardation.

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Definitions:

Third Unit

In economic terms, it refers to purchasing or producing a third unit of a good or service, often discussed in the context of marginal analysis.

Socially Optimal

A state or outcome of an economic or social process that maximizes societal welfare, taking into account all costs and benefits to society.

Fair-Return

A principle whereby regulated entities are allowed to set prices that cover their costs and provide a reasonable profit.

Price-Discriminating

A pricing strategy where a seller charges different prices for the same product or service to different customers based on various factors.