The Demand Function for a Certain Commodity Is $p ( x ) = \frac { 1800 } { ( x + 5 ) ^ { 2 } }$

question 176

Essay

The demand function for a certain commodity is $p ( x ) = \frac { 1800 } { ( x + 5 ) ^ { 2 } }$ . Find the consumer surplus when the selling price is $18.

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Definitions:

SAT Math Test

A standardized test section that assesses mathematical reasoning and problem-solving skills, part of the SAT college entrance examination.

Spatial Reasoning Test

An assessment that evaluates a person's ability to manipulate shapes in their mind and understand the spatial relationships between objects.

Validity

The extent to which a test, measurement, or study accurately reflects or assesses the specific concept it is intended to measure.

Block Design Puzzles

Cognitive tests involving the arrangement of two-dimensional geometric blocks to match a pattern, used to assess spatial visualization and problem-solving abilities.