Math

One hundred meters of fencing is available to enclose a rectangular area next to river give a function
A that can represent the area that can be enclosed, in terms of X?

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  3. 👁 5,212
  1. let X equal the length along the river

    so 50-X is the distance away from the river

    A = 50 X - X^2

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  2. Because the river is there, only 3 sides need to be fenced.

    A = x ( 100 - 2 x ) =

    100 x - 2 x ^ 2 =

    2 ( 50 x - x ^ 2 )

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  3. what if
    A= ________x^2 + ______x

    what should I insert?

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  4. A(x)= 50x - x²/ 2

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  5. f(a)= x+2y=100
    f(a)=50x-0.5x²

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  6. Why you use 2y,can you please clarify??

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  7. lenght = x
    width = y

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