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March 31, 2015

March 31, 2015

Posted by **katrina** on Wednesday, January 6, 2010 at 6:39pm.

evaluate each of the following

1. 81^-1/4 (81 to the negative power of one fourth)

2. 125^2/3

3. 64^-3/2

4. 4^3/2

answers and work please

- math -
**Damon**, Wednesday, January 6, 2010 at 6:46pm81^-(1/4)

= 1/81^(1/4)

well 81=9*9 which is 3*3*3*3

so

3

so the answer is 1/3

125 = 5*5*5

so

125^(1/3) = 5

5^2 = 25

so the answer is 25

I bet you know 4^(1/2)

and I bet you can cube that.

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