Calculus

A rectangle has area 64 m2. Express the perimeter of the rectangle as a function of the length L of one of its sides.

State the domain of P. (Assume the length of the rectangle is larger than its width. Enter your answer using interval notation.)

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  1. p = 2L + 2 w
    w = 64/L
    so
    p = 2L +128/L

    w can range from 0 to L
    if w = 0, L ---->oo and p -->oo
    if w = L, L = w =8 and p = 4*8 = 32
    so
    32 </= p </= oo

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  2. damon smd

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  3. ur bad at explaining

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