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Math Help - transposing a sqrt

  1. #1
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    transposing a sqrt

    Goodday
    I have the following equation , but i'm trying to find Q.
    How would i transpose this to put Q on the other end of the =

    d = sqrt (4*Q/pi*v)
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  2. #2
    Super Member Quacky's Avatar
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    Quote Originally Posted by robhare View Post
    Goodday
    I have the following equation , but i'm trying to find Q.
    How would i transpose this to put Q on the other end of the =

    d = sqrt (4*Q/pi*v)
    d=\sqrt{\dfrac{4Q}{v\pi}}?

    If so, then d^2=\dfrac{4Q}{v\pi} (I've squared both sides)

    And d^2v\pi=4Q (Timesed both sides by v\pi)

    So Q=\dfrac{d^2v\pi}{4} (Divided both sides by 4)
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  3. #3
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    thanks , perfect
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  4. #4
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    Hi , help one more time please .
    How would the equation look if i wanted to isolate v on the other side of the = .
    thanks
    rob
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  5. #5
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    Go back to d^2v\pi= 4Q
    v is not yet "isolated" because it is multiplied by v\pi. So do the opposite: divide both sides by v\pi.
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