Suppose a veterinarian prescribes a medication for a dog.
She prescribes a 100-milligram dosage of arthritis medica-
tion that has a half-life of 10 hours. The function that can
be used to determine the amount of arthritis medication in
a dog's bloodstream after thours is:
N(t)=100 (1/2) ^t/10
What is the maximum amount of time after the first
dosage that the dog should be given a second 100-mil-
ligram tablet in order to keep the medication from going
below 35% in the dog's bloodstream?
