A furniture manufacturer estimates that the weekly cost of manufacturing x units of a particular type of office chair is C(x)=x3-3x2-80x+500 reais. Knowing that each chair is sold at $ 280 and assuming that the entire production is sold, what must be the weekly production of this type of chair so that the manufacturer's profit is maximum?

Intermediate Algebra
19th Edition
ISBN:9780998625720
Author:Lynn Marecek
Publisher:Lynn Marecek
Chapter9: Quadratic Equations And Functions
Section9.6: Graph Quadratic Functions Using Properties
Problem 287E: In the following exercises, solve. Round answers to the nearest tenth. 287. A land owner is planning...
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A furniture manufacturer estimates that the weekly cost of manufacturing x units of a particular type of office chair is C(x)=x3-3x2-80x+500 reais. Knowing that each chair is sold at $ 280 and assuming that the entire production is sold, what must be the weekly production of this type of chair so that the manufacturer's profit is maximum?

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