How many trees should be planted per acre in order to obtain the maximum yield of apples?
and
A manufacturer finds that the revenue generated by selling x units of a certain commodity is given by the function R(x) = 80x - .5x^2, where the revenue R(x) is measured in dollars.
What is the maximum revenue?
How many units should be manufactured to obtain this maximum?
I don't want you to just answer I would like you to explain it to me.
Most Helpful Opinions