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Math Help - help please algebra

  1. #1
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    help please algebra

    hi dont know were to put this this is for an assignment and i nee help pritty quick


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  2. #2
    Member u2_wa's Avatar
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    a) F=\frac{95}{1.7^2} (calculate it yourself in which category it lies)
    b) h=\sqrt{\frac{W}{F}}
    c) h>\sqrt{\frac{65}{25}}m

    For remaining questions you should try it yourself and ask if you get stuck anywhere.
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  3. #3
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    Quote Originally Posted by casual-rich View Post
    hi dont know were to put this this is for an assignment and i nee help pritty quick
    ...
    to #4 a): You only have to plug in the given values to calculate F:

    F = \dfrac{95\ kg}{(1.7\ m)^2} = 32.87\ \dfrac{kg}{m^2}

    So this person obviously(!) has crossed the border

    b)

    F = \dfrac{w}{h^2}~\implies~h^2=\dfrac wF~\implies~h=\sqrt{\dfrac wF}

    c) Plug in the given values and use the property of being healthy:

    \dfrac{65}{h^2} < 25~\implies~\dfrac{65}{25} < h^2~\implies~h>\sqrt{\dfrac{13}5}\approx 1.61\ m
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