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calculusxy

  • one year ago

@ospreytriple

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  1. anonymous
    • one year ago
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    Hi.

  2. calculusxy
    • one year ago
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    \[\huge \frac{ \sqrt5 }{ m } = \frac{ m }{ \sqrt20 }\]

  3. calculusxy
    • one year ago
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    find the value of m

  4. anonymous
    • one year ago
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    OK. Here's the way I look at this. You can't solve for m while it's in the denominator. What mathematical operation could you perform to get rid of the m in the denominator on the left hand side.

  5. calculusxy
    • one year ago
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    can you multiply it ?

  6. anonymous
    • one year ago
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    Exactly. Multiply both sides by m. Then what will it look like?

  7. calculusxy
    • one year ago
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    \[\sqrt5 = \frac{ m^2 }{ \sqrt20 } => \sqrt{100} = m^2 => m = 10\]

  8. anonymous
    • one year ago
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    You're very good. Well done!

  9. calculusxy
    • one year ago
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    thank u! i need help on two other.. can u still bear with me?

  10. anonymous
    • one year ago
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    Oops. Wait one second. There might be a small boo boo in your answer.

  11. anonymous
    • one year ago
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    \[\sqrt{5} = \frac{ m^2 }{ \sqrt{20} }\]\[m^2 = \sqrt{100} = 10\]Solve for m.

  12. calculusxy
    • one year ago
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    oh so you word need to find the sqrt of 10?

  13. calculusxy
    • one year ago
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    *word => need

  14. anonymous
    • one year ago
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    That's right.

  15. anonymous
    • one year ago
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    So the answer would have to be\[m=\pm \sqrt{10}\]

  16. anonymous
    • one year ago
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    OK?

  17. calculusxy
    • one year ago
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    yes thx :)

  18. anonymous
    • one year ago
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    Great. I have to run along now. Good luck. It's been great working with you!

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