The function f (x) 90 1 270e0.122x models the percentage,
Chapter 12, Problem 12.1.67(choose chapter or problem)
The function f (x) 90 1 270e0.122x models the percentage, f (x), of people x years old with some coronary heart disease. Use this function to solve Exercises 6162. Round answers to the nearest tenth of a percent. Evaluate f (70) and describe what this means in practical terms.
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