Mathematics, 23.02.2022 20:50 keegan5096

David has 400 yards of fencing and wishes to enclose a rectangular area against a pre-existing fence. What equation should David use to help him maximize the area? A. f(x)=x(400-2x)
B. f(x)=x(400+2x)
C. f(x)=2x(400-x)
D. f(x)=2x(400+x)

f(x)=x(400-2x)

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David has 400 yards of fencing and wishes to enclose a rectangular area against a pre-existing fence...