Question: BLOOD ALCOHOL LEVEL The percentage of alcohol in a person's bloodstream t hr after drinking 8 fluid oz of whiskey is given by
A(t) = 0.23te-0.4t (0 ≤ t ≤ 12)
a. What is the percentage of alcohol in a person's bloodstream after ½ hr ? After 8 hr?
b. How fast is the percentage of alcohol in a person's bloodstream changing after hr? After 8 hr?