After a large number of drinks, a person has a blood alcohol level of 200 mg/dL (milligrams per deciliter). If the amount of alcohol in the blood decays exponentially, and after 2 hours, 72 mg/dL remain, find an exponential model for the person's blood alcohol level f(t) where t is the    f(t) =      Use your model to estimate the person's blood alcohol level after 4 hours. (Round your answer to one decimal place.)

Question
After a large number of drinks, a person has a blood alcohol level of 200 mg/dL (milligrams per deciliter). If the amount of alcohol in the blood decays exponentially, and after 2 hours, 72 mg/dL remain, find an exponential model for the person's blood alcohol level f(t) where t is the 
 
f(t) = 
 
 
Use your model to estimate the person's blood alcohol level after 4 hours. (Round your answer to one decimal place.)
 
 

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