anonymous
  • anonymous
Find the mean proportional (geometric mean) of 15 and 20.
Mathematics
chestercat
  • chestercat
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anonymous
  • anonymous
Ok for this one I don't know what to do
anonymous
  • anonymous
ok. i have other questions let me try to see if i can get help with this one.
anonymous
  • anonymous
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 \[\sqrt{2*8}= \sqrt{16}\]

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anonymous
  • anonymous
Can you solve your problem now?
anonymous
  • anonymous
so \[SO \it would be \sqrt{15*20}\]
anonymous
  • anonymous
?
anonymous
  • anonymous
please help. is it?
anonymous
  • anonymous
Yes.
anonymous
  • anonymous
Thanks
anonymous
  • anonymous
as the formula for geometric mean is \[\sqrt[n]{a _{1}a _{2}a _{3}...a _{n}}\]

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