Posted by **Shawn** on Monday, December 1, 2008 at 12:23pm.

Where appropriate, include the approximation to the nearest ten-thousandth.

24.) 3^x= 1/81

25.) logx 125 =3

26.) log64 x = 1/2

- Algebra -
**bobpursley**, Monday, December 1, 2008 at 1:28pm
These are extraordinarily easy. For instance, what is 5 cubed?

I will be happy to critique your thinking.

- Algebra -
**Shawn**, Monday, December 1, 2008 at 2:09pm
Where appropriate, include the approximation to the nearest ten-thousandth.

24.) 3^x= 1/81 I have x = 1/5

25.) logx 125 =3 I have x = 5

26.) log64 x = 1/2 I have x = 8

Are these answers right?

- Algebra -
**bobpursley**, Monday, December 1, 2008 at 2:26pm
on the first, log3 of each side

x= -log3 81=-4

others are right.

- Algebra Thanks -
**Shawn**, Monday, December 1, 2008 at 2:31pm
Thanks

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