After the antibiotic Streptomycin is given to a patient, the population (in million) of Mycobacterium in the body is given by the function f(t) = -0.02(t)2 + 3, where t is in hours. Find the rate at which the population of the bacteria is changing after 4 hours.

After the antibiotic Streptomycin is given to a patient the population in million of Mycobacterium in the body is given by the function ft 002t2 3 where t is in class=