The rate at which a chemical is added to a tank is liters per hour for
MATHEMATICS · Single correct · AP · Calculus AB · Applications of Integration · Applications of Integration
Problem
The rate at which a chemical is added to a tank is r(t)=t2−4t+3 liters per hour for 0≤t≤4. The chemical is removed whenever r(t)<0. Determine the total number of liters of chemical that enter the tank during the four-hour period.
(a) 34
(b) 38
(c) 4
(d) 2