OpenStax, Algebra and Trigonometry 2e §5.7 Inverses and Radical Functions · Exercise 69 · Algebra · Polynomials

Inverses and Radical Functions · Exercise 69

Determine the function described and then use it to answer the question.

The surface area, $A,$ of a sphere in terms of its radius, $r,$ is given by $A (r) = 4 π r^{2} .$ Express $r$ as a function of $A,$ and find the radius of a sphere with a surface area of 1000 square inches.

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OpenStax, Algebra and Trigonometry 2e · §5.7 Inverses and Radical Functions · Exercise 69

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