wimpydofa wimpydofa
  • 30-04-2014
  • Mathematics
Answered

if 9 to the power of x = 27, what is x.

Method as well plz!

Answer :

kltyuiop kltyuiop
  • 30-04-2014
You can use logarithms:

Log9(27) which will give you the value of x

X= 1.5
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Аноним Аноним
  • 30-04-2014
[tex]9^x=27\\\\(3^2)^x=3^3\\\\3^{2\cdot x}=3^3\\\\3^{2x}=3^3\iff 2x=3\ \ \ /:2\Rightarrow x=1.5[/tex]
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