Recent content by rachelwind

Thankyou both. It has become much clearer to me now. (Handshake)

So here's the question: If h(t) denotes the number of times a person’s heart beats in t minutes, then the pulse rate p beats per minute is given by p = dh/dt During a workout an athlete has a pulse rate p(t) beats per minute where p(t) = 58 + 10.62t^2(e^-0.25t) t minutes after the start of...