...I need some assistance on several problems I am absolutely stuck on:
"The quantity of a drug, Q mg, present in the body t hours after the injection of the drug is given is:
Q=f(t)=80t * e^-0.38t
Round your answers to two decimal places."
I know I'd find the derivative of f(t). Would it be:
80t(-.38t)e^-.38t <<<<<<< No. You have to use the product rule here (see above)
"A dose, D, of a drug causes a temperature change, T, in a patient. For C a positive constant, C=32, T is given by:
What is the rate of change of temperature change with respect to dose?
For what doses does the temperature change increase as the dose increases?
D < _____"
Not sure where to start here. Maybe substitute C=32 OK then expand the bracket and take the derivative of the equation !