Saturday

February 28, 2015

February 28, 2015

Posted by **Katrina** on Saturday, August 8, 2009 at 3:25pm.

If the sides perpendicular to the wall have length x feet, which of the following (A, B, C, or D) represents the area A of the garden? (No explanation required) Choice:

A. A(x) = –2x^2 + 20x

B. A(x) = –2x^2 + 40x

C. A(x) = 2x^2 – 40x

D. A(x) = x^2 – 40x

I say it's B

and based on that

The parabola opens down? agree or not?

Vertex = (10,200)??

The maximum area is 200 sqft?

When the sides perpendicular to the wall have length x = 10ft.

and the side parallel to the wall has length 20ft.

Is this all correct and accurate? Thanks!

- Algebra Word Problem Help -
**bobpursley**, Saturday, August 8, 2009 at 3:53pmYes, that is still accurate.

- Algebra Word Problem Help -
**Ashley**, Monday, April 14, 2014 at 11:27amHouston Community College is planning to construct a rectangular parking lot on land

bordered on one side by a highway. The plan is to use 640 ft of fencing to fence off the

other three sides. What should the dimensions of the lot be if the enclosed area is to be a

maximum?

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