Find an exponential decay function of the form Q(t)=Q0e^-kt for a person who just had 390mg of caffeine. With a half-life of 5 hours. Plug-in information and solve for k.  b. How much of the original 390mg of caffeine is in the body after 5 hours?  c. Rounding to the nearest hour, when will the caffeine be reduced to the minimum amount that should no longer have any stimulant effects on the body?

Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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Find an exponential decay function of the form Q(t)=Q0e^-kt for a person who just had 390mg of caffeine. With a half-life of 5 hours. Plug-in information and solve for k. 

b. How much of the original 390mg of caffeine is in the body after 5 hours? 

c. Rounding to the nearest hour, when will the caffeine be reduced to the minimum amount that should no longer have any stimulant effects on the body?

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