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# The logistic growth function P(x)=90/1+271e -0.122x models the percentage, P(x) of Americans who are x years old and have some coronary heart disease....

The logistic growth function P(x)=90/1+271e-0.122x models the percentage, P(x) of Americans who are x years old and have some coronary heart disease. Use this function to find the age at which percentage of Americans who have some coronary heart disease is 33%