Thursday

March 5, 2015

March 5, 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.

**Answer this Question**

**Related Questions**

math - I have no idea how to do these plaese help(: evaluate each of the ...

Algebra - I am so confused with the rules of exponents. I know them, but I have ...

Algebra - I'm not sure if anyone saw my question yesterday, but here it is again...

math - which of the following expressions shows the equation to use in finding ...

Math - Evaluate: (-1)^25 (-2)^3 well, the negative one to an odd power is ...

math word problm - WHAT IS THE TENTH DIDGIT IN THE QUOTIENT 120 / 11? A. 0 B. 1 ...

math - Evaluate: 2 to the fourth power + 2 to the third power

MATH - WHAT IS THE TENTH DIDGIT IN THE QUOTIENT 120 / 11? A. 0 B. 1 C. 8 D.9 I ...

math - how do i solve the following: 6 X 10 to the power of one + 5 X 10 to the ...

math - Why is 5 to the negative 4 power= 1/5 to the fourth power?