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Math Help - I really don't like word problems

  1. #1
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    I really don't like word problems

    They always confuse me.

    The volume of a right circular cylinder of a radius (r) and height (h) is given V=(pie)r^2h. If the radius is twice the height, the volume can be expressed as a function of h only. Use composition of functions to find the volume as a function of height and find the volume if the height is 6 inches. Round your answer to 2 decimal places.


    Any help?
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  2. #2
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    Quote Originally Posted by NFG123 View Post
    They always confuse me.

    The volume of a right circular cylinder of a radius (r) and height (h) is given V=(pie)r^2h. If the radius is twice the height, the volume can be expressed as a function of h only. Use composition of functions to find the volume as a function of height and find the volume if the height is 6 inches. Round your answer to 2 decimal places.

    \textcolor{red}{r = 2h}

    V = \pi \textcolor{red}{r^2} h

    V = \pi \textcolor{red}{(2h)^2} h<br />

    finish up the problem with your calculator.



    also ... the constant , \pi , is spelled pi. "pie" is something to eat.
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  3. #3
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    Quote Originally Posted by skeeter View Post


    also ... the constant , \pi , is spelled pi. "pie" is something to eat.
    oops, I totally overlooked that, thanks for the help
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