Diana has available 280 yards of fencing and wishes to enclose a rectangular area.
​(a) Express the area A of the rectangle as a function of the width W of the rectangle.
​(b) For what value of W is the area​ largest?
​(c) What is the maximum​ area?

Respuesta :

Answer:

David has 280 yards of fencing to enclose a rectangular area. Find the demensions of the rectangle that maximize the enclosed area.What is the maximum area?

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let x=width

let y=length

2x+2y=280

x+y=140

y=140-x)

Step-by-step explanation: