Question
a farmer wants to fence in three sides of a rectangular field with 1,000 feet of fencing. the other side of the rectangle will be a river. find the dimensions of the field.
Answers
a = x(1000-2x) = 1000x - 2x^2
max at x = 250
field is 250 x 500
max at x = 250
field is 250 x 500
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