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A woman who is 6 feet tall stand near a light that is 13 feet tall. Find a function for the length of her shadow in term of her distance from the base of the lamp.

  • Precalculus -

    If x is the distance from the lamp, and s is the length of her shadow, then using similar triangles,

    13/(x+s) = 6/s
    s = 6/7 x

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