Find the Partial Sum $a _ { n } = ( n + 1 ) ( n - 5 )$

question 44

Multiple Choice

Find the partial sum.
-Find the sum of the first three terms of the sequence whose general term is $a _ { n } = ( n + 1 ) ( n - 5 )$ .

• A) 25
• B) 65
• C) \(- 17\)
• D) \(- 25\)

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Definitions:

Profit-Maximizing Quantity

The production level where a firm reaches its maximum profit.

Monopoly Model

An economic model describing a market structure where a single seller controls the entire market supply, setting prices without competition.

Point

An exact location in space, defined by coordinates or a descriptor, but without any dimensions, area, volume, or length.

MR = MC

The condition where marginal revenue equals marginal cost, often used as the profit maximization point for firms in microeconomics.