A rectangle has its two lower corners on the x-axis and its two upper corners on the parabola y=9-x2.
What are the dimensions of such a rectangle with the greatest possible area?
1...

A rectangle has its two lower corners on the x-axis and its two upper corners on the parabola y=11-x2
What are the dimensions of such a rectangle with the greatest possible area?
width=...

A rectangle is inscribed with its base on the x-axis and its upper corners on the parabola y=12-x2 . What are the dimensions of such a rectangle with the greatest possible area?
width=?
height=...

An open-top box is to be constructed so that its base is twice as long as it is wide. Its volume is to be 2300 cm^3. FInd the dimensions that will minimize the amount of cardboard required.
Make:
Length...

The area of a room is 99-3/7 square feet. The area of the kitchen is 1-3/4 the area of room. If the length of kitchen is 14-1/2 feet how wide is the kitchen? I have no idea where...