Questions on Algebra: Negative and Fractional exponents answered by real tutors!

Tutors Answer Your Questions about Exponents-negative-and-fractional (FREE)

Question 355883: - h/3-4=13
Click here to see answer by jerryguo41(197)

Question 357198: how do i answer this:
-1/4 to the -3 power
(negative one fourth to the negative three power)
Click here to see answer by mananth(16946)

Question 358645: how do u put in the expontent 54 into a calculator??
the question is 1000(1+.09/12)^(54)
Click here to see answer by Fombitz(32388)

Question 358727: How do I solve 0.0293=x^-1.007 on a calculator?
Click here to see answer by Fombitz(32388)

Question 359538: Simplify and write each answer with positive exponents. All variables represent nonzero real numbers.
1. (-7x^-8)(3x^2)
2. (x^11 over x^5)^-3
Click here to see answer by Fombitz(32388)

Question 360216: I'm trying to figure out the answer to the problem. 4^(-2/3)
Here are my mechanics, 4^(-2/3) = (invert a neg. exponent to make it possitive)4^(3/2)= 2 √43 = 2 √64 = 8 ( Using the principle that when you have a fractional exponent use the following rule: X^(a/b)= b√Xa) Is this answer correct, or have I made an error. Thank you in advance.
Click here to see answer by edjones(8007)

Question 360540: 3/5x-6+5x-20(1/5x-3/4)-5(9-x)
Click here to see answer by rfer(16322)

Question 360610: I am trying to solve parenthesis negative 2x y to the -3 close parenthesis to the -3 over parenthesis xy to the negative one close parenthesis to the -1.
Click here to see answer by Theo(13342)

Question 360850: Simplify: (-1/64)^-2/3
I am getting a non real number for this, could you solve it and if possible show my how. This way I will be sure whether or not I am doing it correctly.
Click here to see answer by edjones(8007)

Question 362924: Write without using positive exponents:
4 1/3 * 4 -3/4 divided by 4 2/3.
Should read 4 and 1/3 times 4 and negative 3/4 divided by 4 and 2/3.
Thanks a bunch
Click here to see answer by checkley77(12844)

Question 363132: rewrite without an exponent
(5/4)^-3
Click here to see answer by checkley77(12844)

Question 363318: Help me solve this equation 4/5k-5=7+2/5k

Click here to see answer by robertb(5830)

Question 363350: what percent of 75 is 27?

Click here to see answer by robertb(5830)

Question 363498: whats 64 raised 2/3 power
Click here to see answer by Fombitz(32388)

Question 363943: please simplify: (.015625x(3/x^3))/(6/x^4)
Click here to see answer by stanbon(75887)

Question 364151: multiply and simplify
(10y - 1/4)(5y - 1/2)
This is what I have
50y^2 - 5 - 5/4 + 1/8
50y^2 - 5 - 11/8
This is as far as I got

Click here to see answer by Earlsdon(6294)

Question 365108: equal value
y=x+2
y=2x-1
Click here to see answer by Fombitz(32388)

Question 365274: For my sheet of notes, I need to solve for "x." The problem given is:

Another one that's given is
I've tried these problems over and over, but I can't figure them out. Please, help me!
Click here to see answer by jsmallt9(3758)

Question 365889: One- fourth of a certain breed of rabbits are born with long hair. What is the probability that in a litter of six rabbits, exactly three will have long hair.
Click here to see answer by robertb(5830)

Question 366005: Suppose S varies directly as the 2/3 power of T, and that S=16 when T=8. Find S when T= 27
Click here to see answer by amoresroy(361)

Question 366005: Suppose S varies directly as the 2/3 power of T, and that S=16 when T=8. Find S when T= 27
Click here to see answer by Theo(13342)

Question 366064: 3/4 + 4/9 =
7/5 * 3/10 =
3/10 divided by 7/15 =
Click here to see answer by Fombitz(32388)

Question 366426: 5 1/2 * 5 1/2
Click here to see answer by rfer(16322)

Question 366419: (25+144)1/2
Click here to see answer by rfer(16322)

Question 365762: what is 2 to the 2nd power
18 divided by 2to the second power
Click here to see answer by Fombitz(32388)

Question 367300: How do I solve
81^-3/4
Click here to see answer by josmiceli(19441)

Question 367540: (6x)^-2
Click here to see answer by robertb(5830)

Question 367784: write as a fraction and simplify z-4

Click here to see answer by Fombitz(32388)

Question 368354: solve for x:
(x+2)^2/5 - 6(x+2)^1/5 = -8
Click here to see answer by Fombitz(32388)

Question 368418: How do I multiply fractions?
Example -5/7x-8/7
Click here to see answer by Alan3354(69443)

Question 368833: wat is -x^-2x^-3
Click here to see answer by user_dude2008(1862)

Question 368865: Simplify (2/3) to the negative 4th power
Click here to see answer by neatmath(302)

Question 369544: 2s - 13t = 120
-14s + 91t= -840
How to solve by substitution or elimination
Click here to see answer by Alan3354(69443)

Question 372591: simplify the expression rewrite with positive exponents
(4x^-3)^-4
Click here to see answer by ayalyaniv(6)

Question 373301: 25 1/2 - 81 1/4
Click here to see answer by checkley79(3341)

Question 373391: how do you solve
-n + 0.4n + 1.8 = -4.2

Click here to see answer by kac123kac(8)

Question 373429: We are doing middle school Algebra homework. Writng fractions as expressions using a negative exponent.
Hw do we convert 1 / 8 squared? or 1 / 10 to fifith?
Click here to see answer by jsmallt9(3758)

Question 374383: This problem is throwing me off because of the negative exponent. If you are able to answer please show your work so I will understand how you arrived at the answer for my other homework problems. Thanks so much!!!
3^5/8
______
3^-1/8
(note: this is a fraction with 3^5/8 being the numerator and 3^-1/8 being the denominator)

Click here to see answer by jsmallt9(3758)

Question 375701: (b^2/3*b^1/4)^1/2
Click here to see answer by Fombitz(32388)

Question 375702: b^1/2*b^-7/8 divided by b^1/8
Click here to see answer by Fombitz(32388)

Question 376004: a^-2 + a
--------
a + 1
complex fraction, answer is
a^2 - a+1
---------
a^2
but i do not get this answer
Click here to see answer by ewatrrr(24785)

Question 377357: I am confused on how to solve this problem.
(2s^-1t^3/6s^2t^-4)^-3
Click here to see answer by Fombitz(32388)

Question 377516: simplify (-64)-2/3
Click here to see answer by edjones(8007)

Question 377183: |-11|-|-29|

Click here to see answer by nyc_function(2741)

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