MediumDeterminants

OpenStax, Algebra and Trigonometry 2e §11.8 Solving Systems with Cramer's Rule · Exercise 177 · Linear Algebra · Determinants

Solving Systems with Cramer's Rule · Exercise 177

Solve using a system of linear equations.

A factory producing cell phones has the following cost and revenue functions: $C (x) = x^{2} + 75 x + 2, 688$ and $R (x) = x^{2} + 160 x .$ What is the range of cell phones they should produce each day so there is profit? Round to the nearest number that generates profit.

~8 minWritten answer · compare with the solution

OpenStax, Algebra and Trigonometry 2e · §11.8 Solving Systems with Cramer's Rule · Exercise 177

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