SOLUTION: A farmer wants to construct a pen with 100 feet of fencing. The pen will be divided into 2 areas. Find the dimensions of the big pen ( the whole thing) the x coordinate of the vert

Question 823767: A farmer wants to construct a pen with 100 feet of fencing. The pen will be divided into 2 areas. Find the dimensions of the big pen ( the whole thing) the x coordinate of the vertex of a parabola is x= -b/2a
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
Knowing that the biggest area occurs with x and y of a rectangle being equal, the big pen would be square, x=y, or side of just x. ASSUMING the divider is parallel to one of the sides, then fencing length is 5x.

5x=100
x=20 feet.
The whole-thing area is 400 square feet.

The rest of your question does not seem fitting to the problem.
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