# Math Help - Revenue maximised?

1. ## Revenue maximised?

The total revenue generated from selling x thousand of items is reasonably approximated by R(x)=2.7x^2 - 0.04x^3 thousand of dollars for 0<x<60 .
If this is indeed the case then at what level of sales is the rate of increase in revenue maximised?

2. Originally Posted by mathcalculushelp
The total revenue generated from selling x thousand of items is reasonably approximated by R(x)=2.7x^2 - 0.04x^3 thousand of dollars for 0<x<60 .
If this is indeed the case then at what level of sales is the rate of increase in revenue maximised?
Have you attempted to solve the problem? You should show what you've done so far so we know what you don't understand. This problem is pretty simple, just use the closed interval method to find the maximum of the function $R$.