Waiting for answer This question has not been answered yet. You can hire a professional tutor to get the answer.
QUESTION
He surface area S (in square meters) of a hot-air balloon is given by S(r)=4πr2 where r is the radius of the balloon (in meters). If the radius r is increasing with time t (in seconds)
He surface area S (in square meters) of a hot-air balloon is given by S(r)=4πr2 where r is the radius of the balloon (in meters). If the radius r is increasing with time t (in seconds) according to the formula r(t)= 3 4 t4, t≥0, find the surface area S of the balloon as a function of the time t.
