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

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

Question 379913: How do I simplify this problem: (-8)^(-2/3)/(27)^(1/3)
Click here to see answer by robertb(5830)

Question 380389: 6) The sum of the angles of a triangle is 180˚. If one angle of a triangle measures x and the second angle measures (5x+20)˚, express the measure of the third angle in terms of x. Simplify the expression.
Click here to see answer by Alan3354(69443)

Question 380199: How do I evaluate this fraction, leaving my answer as a fraction?
(49/25)with the exponent as -3/2
Click here to see answer by jsmallt9(3758)

Question 380599: Simplify the following algebraic expression. Rewrite and simplify showing your use of positive exponents: -27x^-5/ -9x^-5. I think this is right here I got -27x 1/x59-90/x5=3 I hope this is right, please let me know by showing the steps in order to better understand this problem. Thanks Donna Whitaker
Click here to see answer by Fombitz(32388)

Question 381202: Perform the computations. Write answers in scientific notation.
9 X 10^-4/ 3 X 10^-6
Click here to see answer by user_dude2008(1862)

Question 381204: Evaluate each polynomial as indicated.
-2x^4 -3x^2 + 5x -9 for x=2
Click here to see answer by jim_thompson5910(35256)

Question 381357: I'm supposed to solve for y?
3y-y+2y-5=7-2y+5
What am I supposed to do?
Click here to see answer by jim_thompson5910(35256)

Question 381659: Find each product. Try to write only the answer.
(3h - 5)(3h + 5)
Click here to see answer by ewatrrr(24785)

Question 381660: Find each product.
(3z^4 - 8)^2
Click here to see answer by ewatrrr(24785)

Question 381663: Find the quotients.
5y -10/-5
Click here to see answer by Fombitz(32388)

Question 381663: Find the quotients.
5y -10/-5
Click here to see answer by ewatrrr(24785)

Question 381826: what is negative x to the negative second power in fraction
Click here to see answer by robertb(5830)

Question 382117: 25)Simplify the expression.

Click here to see answer by unlockmath(1688)

Question 383692: 27 2/3
Click here to see answer by jsmallt9(3758)

Question 384001: please help me solve 5/9(68^0-32^0)=c please show work thank you
Click here to see answer by richard1234(7193)

Question 384171:
How do you solve y=30(2.7)(with exponent) -0.004t Let t be 50 days.
Click here to see answer by rfer(16322)

Question 384458: 5 to the 5/9 power times 5 to the -8/9 power divided by 5 to the 2/9 power
Click here to see answer by rfer(16322)

Question 384986: I have no idea what I am doing Write this problem as a interger or fraction.
[4-3(1-27)]
Click here to see answer by rfer(16322)

Question 385130: Good Sunday!
I am trying to figure out a problem but I am having trouble with the exponent.
Evaluate the expression: 3.2^-3/5
Thanks for the help!
Karen
Click here to see answer by rfer(16322)

Question 385298: y=1over2x-4
Click here to see answer by Fombitz(32388)

Question 385705: find the slope of the line passing through each pair of points
(-3,-1), (-1,5)
Click here to see answer by rfer(16322)

Question 387450: how to solve this -2n=8 dont know what to do with the (-) negitive 2 part
Click here to see answer by stanbon(75887)

Question 387606: what is the soultion of 4-(-4)
Click here to see answer by gwendolyn(128)

Question 388136: Find all real solutions to each equation.
28. x^(2/3)=(1/2)
29.w^(-4/3)=16
Click here to see answer by jsmallt9(3758)

Question 388254: In 1998, there were 92,000 personal computer sold. By 2005, this figure has increased to 220,000. Write an exponentional function in the form y=ab^x to model the number of personal computers sold.
Click here to see answer by Fombitz(32388)

Question 388367: Simplify the expression. Write answer using only positive exponents. how to do problems: X^-7 6y^-4
Click here to see answer by mananth(16946)

Question 386693: x-3/2 x= 1 I know the answer is -2 but I don't understand why. Please help studying for a big test! Thanks.
Click here to see answer by robertb(5830)

Question 389367: -3x(x^2-2)
Click here to see answer by jim_thompson5910(35256)

Question 389485: (3x'3y'2)'2/xy'3

Key:
'=exponent eg: 3x'3 is 3X to the third.
/= fraction eg: 3x/3= 3x over 3.
Click here to see answer by haileytucki(390)

Question 389824: what is the difference between a negative exponent and a fractional exponent?
Click here to see answer by mananth(16946)

Question 390503: Okay so I'm simplifying exponential expressions, and when i have y^-2/y^3 what do i do?
Click here to see answer by mananth(16946)

Question 390848: "determine whether each equation represent a direct variation, If it does, find the constant of variation," 1. -8y=2x
Click here to see answer by stanbon(75887)

Question 391088: I'm working with exponets. It's very confusing for me, and i dont understand this problem : Use the power of a power property to simplify the exxpression: (4)2.
Click here to see answer by rfer(16322)

Question 391265: 2^-3x^2z^-7
Click here to see answer by haileytucki(390)

Question 391491: If a and b are real numbers and n is a positive integer, write a simplified expression for the product of a to the negative n power times b to the zero power that contains only positive exponents. Explain your answer. HELP!!!
Click here to see answer by jsmallt9(3758)

Question 391947: Simplify the expression.
y^5/4 y^-1/4 divided by y^1/3

Write your answer using only positive exponents.
Assume that all variables are positive real numbers.
Click here to see answer by ewatrrr(24785)

Question 392000: Simplify
28t^3u/5rs^2 divided by 7t^5u^4/15s^5
Click here to see answer by MathLover1(20850)

Question 392509: I am trying to help my son with his homework. I am having trouble with this problem. I would appreciate any assistance.
(3x)^-3y^4
___________
-x^2y^-6
Click here to see answer by stanbon(75887)

Question 393028: find -x when x=-99/13
Click here to see answer by Fombitz(32388)

Question 393028: find -x when x=-99/13
Click here to see answer by richard1234(7193)

Question 393069: remove parenthesis and simplify 4p+3q-2(4p-4q+9r)
Click here to see answer by mananth(16946)

Question 392958: Rewrite the expression using a negative exponent : 5/ x to the 5th power
Click here to see answer by jsmallt9(3758)

Question 393432: I need help solving the below problem
4{3[5(y − 3) + 9] + 2(y + 8)}
Click here to see answer by stanbon(75887)

Question 393940: x/-4+5=1 zandral.moore@yahoo.com
Click here to see answer by rfer(16322)

Question 394037: what is 125 to the -4/3:
Click here to see answer by robertb(5830)

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