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Fynjy0 [20]
3 years ago
10

Geraldine has 200 feet of fencing. She wants to fence in a rectangular area. Which function A(w) represents the area of land tha

t can be fenced in if the width of the rectangular area is w?
Mathematics
1 answer:
Brut [27]3 years ago
5 0

Answer:

A(w) = - w^{2} + 100w

Step-by-step explanation:

First,  we need to find down the length (l) of the rectangular area in term of w

We have 200 feet of fencing is the perimeter of the rectangular area, which mean:

2 (w + l) = 200

<=> l = 100-w

But the area of land: w*l

= w (100-w)

=- w^{2} + 100w

So, A(w) = - w^{2} + 100w  

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