Friday

March 27, 2015

March 27, 2015

Posted by **molly** on Wednesday, November 30, 2011 at 11:04pm.

- algebra -
**Steve**, Thursday, December 1, 2011 at 5:17am15^(log

_{15}n) = n

That's the definition of the logarithm. It's the power of the base needed to get the number.

So, 15^log9 = 9 (using base 15)

15^2log9 = (15^log9)^2 = 9^2 = 81

**Answer this Question**

**Related Questions**

algebra - equivalent expression for 2log(x+1)-2log(x-1)-log(x-1)

algebra - does log base of 4 sqrt(t/s)=1/2log base of 4 t - 1/2log base of 4s? ...

Math - Express as a single logarithm. 1/2log(subscript)3 144-log(subscript)3 4+...

algebra - What is the invers of: y=2log(x+1) and please explain this to me..not ...

Precalculus - What am I doing wrong? I keep getting 48 and its wrong... Solve ...

Algebra II - How would I write log(6)27-2log(6)3 as a single logarithm I'm ...

algebra- please HELP - What is the invers of: y=2log(x+1) and please explain ...

algebra - equivalent expression for 2log(x+1) - log(x^2 -1) +log(x-1)

LOGARITHMS - HI THE QUESTION STATES THAT ONE SHOULD CALCULATE THE LOGS WITHOUT ...

math - i need some serious help with limits in pre-calc. here are a few ...