a-farmer-is-monitoring-the-growth-of-a-crop-over-a-120120-day-period-the-height-

Question

A farmer is monitoring the growth of a crop over a 120120-day period. The height of the crop in centimeters is given by the function ﻿h(t)={95t2, if 0≤t60−95(t2−240t+120),if 60≤t120h(t)=\begin{cases}\$$frac95t^2$$,	ext{ if }0\le th(t)={59​t2, if 0≤t60−59​(t2−240t+120),if 60≤t120​﻿ , where tt is the time in days since initially planting their crops. When is the growth rate of the crop at a maximum?

Accepted Answer

t=60 dayst=60	ext{ days}

Answer

t=45 dayst=45	ext{ days}

Answer

t=90 dayst=90	ext{ days}

Answer

t=110 dayst=110	ext{ days}