area of rectangle

[Kyle Concannon]

Help again please!

The area of a rectangle is given by the equation

A=2/pie(100x-x^2), 0<x<100
where x is the length of the rectangle in feet.

 

[stapel]

I'm sorry, but, without any instructions or work shown, I'm afraid I can't figure out what you're supposed to be doing with this information.

Please reply with the full text of the exercise (including the instructions), and show all the steps you have attempted thus far. Thank you.

Eliz.