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4 November, 11:50

If an area of a rectangle with width x can be represented with the expression A (x) = x (14-x), what is the perimeter of the rectangle?

A.) 28

B.) 56

C.) 56-4x

D.) 4x+28

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Answers (1)
  1. 4 November, 12:01
    0
    To solve for the perimeter first figure out the length and width from the formula of area for the rectangle

    A = LxW

    A = (14-X) •X

    L = (14-X)

    W = X

    P = 2L + 2W

    P = 2 (14-X) + 2 (X)

    P = 28 - 2X + 2X

    P = 28.

    The perimeter of the rectangle is A. 28.
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