Sunday

August 31, 2014

August 31, 2014

Posted by **Shreya** on Wednesday, January 23, 2013 at 8:41pm.

evualuat using change of base rule

log(√8)16

^the square root 8 is supposed to be subscript.

the answer i got was 8/3, not sure if that is right

- Pre Calculus 12 -
**Reiny**, Wednesday, January 23, 2013 at 9:49pmYou are correct

This can be done without a calculator

let log_{√8}16 = x

(√8)^x = 16

( (2^3)^(1/2)^x = 2^4

3(1/2)x = 4

3x = 8

x = 8/3

- Pre Calculus 12 -
**Shreya**, Wednesday, January 23, 2013 at 10:07pmThanks very much Reiny :)

- Pre Calculus 12 -
**Reiny**, Wednesday, January 23, 2013 at 10:27pmwelcome

**Related Questions**

Precalculus - I'm studying for my precalc exam and have completed 42 practice ...

Algebra 2 once more - I have more answers that I would like checked. Also, there...

Pre-Calculus - Laws of Logarithms Without using a calculator use the change of ...

Pre Calculus 12 - Laws of Logarithms Evaluate: without using a calculator, ...

Pre-Calculus - Reiny - Reiny you helped me with this logarithm yesterday: How ...

math - Use the Laws of logarithms to rewrite the expression log(base 2)(11x(x-9...

Algebra 2 - -Explain the difference between log base b (mn) and ( log base b of ...

pre calculous - use the properties of logarithms to write the expression as a ...

Math - Express as a single logarithm log(subscript)5(square root)175-log(...

pre-cal - The sq root of -4 (3-sq root of -9) a)6 +6i b)-6+6i c)6-6i d)-6-6i ...