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anonymous

  • one year ago

Find the mean proportional (geometric mean) of 15 and 20.

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  1. anonymous
    • one year ago
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    Ok for this one I don't know what to do

  2. anonymous
    • one year ago
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    ok. i have other questions let me try to see if i can get help with this one.

  3. anonymous
    • one year ago
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    the geometric mean of two of two numbers is the square root of their product for instance the geometric mean of 2 and 8 is \[\sqrt{2*8}= \sqrt{16}\]

  4. anonymous
    • one year ago
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    Can you solve your problem now?

  5. anonymous
    • one year ago
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    so \[SO \it would be \sqrt{15*20}\]

  6. anonymous
    • one year ago
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    ?

  7. anonymous
    • one year ago
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    please help. is it?

  8. anonymous
    • one year ago
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    Yes.

  9. anonymous
    • one year ago
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    Thanks

  10. anonymous
    • one year ago
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    as the formula for geometric mean is \[\sqrt[n]{a _{1}a _{2}a _{3}...a _{n}}\]

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