y= sqrt(81-x^2)

What length and width should the rectangle have so that its area is a maximum?

(smaller value)

(larger value)

I have no clue how to do this, so if someone could please help! thank you

Similar Questions

A rectangle is bounded by the x-axis and the semicircle y=�ã(25-x^2).Question is, what length and width should the rectangle
1. 1 answer
The length of a rectangle is twice the width. The area is 242 yd^2. Find the length and the width of the rectangle.The width
1. 6 answers
The area of a rectangle of length x is given by 3x2 +5x. Find thewidth of the rectangle. The area of a rectangle with width t is
1. 0 answers
Please help me to solve this Radical Expressions and equations word problem.Here is the question: Find the perimeter and the
1. 1 answer