Chapter 4.4, Problem 50E

To determine

(a)

To find:

The maximum weight of the average Holstein cow, if the function for the weight of the cow at various age is $W\left(t\right)=619{\left(1-0.905e^{-0.002t}\right)}^{1.2386}.$

To determine

(b)

To find:

The age at which the cow reaches 90% of this maximum weight.

To determine

(c)

To find:

$W\text{'}\left(1000\right)$, the function is $W\left(t\right)=619{\left(1-0.905e^{-0.002t}\right)}^{1.2386}$.