2. The amount of alcohol in the bloodstream,A, declines at a rate proportional to the amount, that is dA
____= -kA. If k= 0.6 for a particular
person, how long will it take for his alcohol concentration to decrease from 0.10% to 0.05%? Give your answer to the nearest tenth of an hour.
3.Find the volume of the solid generated by revolving the region bounded by the given lines and curves about the x-axis.
y-x+1, y=0, x=-1,x=5
This provides an example of using calculus to find alcohol concentration and volume.