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

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

Question 288471: I'm hoping someone can help me finish this problem.

I've gotten to this point but I don't know where to go from there. Any help would be really appreciated!
Click here to see answer by Alan3354(31487)

Question 289435: can anyone show me how to simplify this problem without negative exponents?
Click here to see answer by Deina(147)

Question 289655: Could you please tell me how to simplify: 7^x-3/7^3x-1.
Click here to see answer by jim_thompson5910(28696)

Question 289655: Could you please tell me how to simplify: 7^x-3/7^3x-1.
Click here to see answer by richwmiller(9144)

Question 290052: how do i write 8-6(8 to the negitive 6 power)in positive exponets
Click here to see answer by dabanfield(803)

Question 290398: Not sure if this is in the right section
Find f[g(x)] and g[f(x)]
f(x)=5x^3+8
g(x)=2x
Answers are
f[g(x)]=40x^3+8
g[f(x)]= 10x^3+16
When I did the problem i kept getting 10x instead of 3 and 8 instead of 16 please help with steps!!
Click here to see answer by richwmiller(9144)

Question 290971: simplest form? (2x-1)(x-6)/(x-3)(1-2x)
Click here to see answer by richwmiller(9144)

Question 291096: 7th grade Algebra
What are the steps/answer to answering the following:

Thank you
Click here to see answer by Edwin McCravy(8999)

Question 291193: I ned help with this:
(z+2)to the negative two-third power = 3
Click here to see answer by Fombitz(13828)

Question 291821: simplify a6power b5power over a3power b2power
Click here to see answer by checkley77(12569)

Question 292384: -1/5)x to the -1/5 times x to the -1/4
what i tried:
1/x to the 1/5 times 1/x to the 1/4 = 1/x to the 1/20
the answer is supposed to be 1/x to the 9/20
Click here to see answer by Deina(147)

Question 293186: how do you solve (r-6)4(exponent)
Click here to see answer by richwmiller(9144)

Question 293262: (x+4)^2/3 = 4
Click here to see answer by richwmiller(9144)

Question 293568: What is the answer to this question:
(-2x-x^-2)^-2
Click here to see answer by richwmiller(9144)

Question 293682: I have no clue how to do this. My teacher did not teach it but it is on the final!! it is (x to the 3/5) over (x to the 6/5 times x to the -5)
Click here to see answer by richwmiller(9144)

Question 294045: Simplify x(-3) / x²
Click here to see answer by nyc_function(2733)

Question 294045: Simplify x(-3) / x²
Click here to see answer by richwmiller(9144)

Question 294061: how do you do algebra
Click here to see answer by Alan3354(31487)

Question 294432: Please find the intercepts for the equation.
2x + y = 6
Thank you
Click here to see answer by Fombitz(13828)

Question 294442: Please help with this problem
Persons taking a 20-hour review course to prepare for a standardized exam average a score of 720 on that exam. Persons taking a 50-hour review course average a score of 768. Using an equation for the line whose graph depicts this data, predict the average score for persons taking a 45-hour review course. Round your answer to the tenths place.
Thanks
Click here to see answer by richwmiller(9144)

Question 294436: Please find the slope and the y-intercept of the line.
y - 7 = 8
Thank you
Click here to see answer by richwmiller(9144)

Question 294445: Please find an equation of the line containing the given pair of points. (slope-intercept form.)
(3.3, -4) and (6.3, 3.6)
Click here to see answer by checkley77(12569)

Question 294850: 2 - 2i divided by 5 + 3i
Please simplify. Thank you.
Click here to see answer by Fombitz(13828)

Question 294984: 4(4^-2)
Click here to see answer by helpnalgebra(91)

Question 295121: If - 1/3x + 7 = 16, what is the value of 2x + 1? And how do you get that answer?
Click here to see answer by richwmiller(9144)

Question 295278: Simplify. Do not use negative exponets in the answer z^8/z^4
Click here to see answer by nerdybill(7003)

Question 296020: Simplify. Write your answer with positive exponents only. a^-3(a^3b^4)^-5 divided by b^-3
Thanks in advance.
Click here to see answer by unlockmath(1614)

Question 296180: simplify 3k^4 x m^-3
Click here to see answer by Theo(3504)

Question 296810: Please help me solve this equation:
Click here to see answer by JBarnum(2044)

Question 296814: Please help me solve this equation:
Click here to see answer by JBarnum(2044)

Question 297208: Please replace the blanks in each equation with constants to complete the square and form a true equation
t^2-5/3t + ___=(t-___)^2
Thank you
Click here to see answer by Fombitz(13828)

Question 298434: Somplify:

_____________________________________

Thanks :)
Click here to see answer by tiffanymania(1)

Question 298827: please find the line of symmetry
f(x)=-(x-2)^2-8
Thank you
Click here to see answer by user_dude2008(1861)

Question 298829: find the minimum value please
f(x)=(x-7.2)^2-3.1
Thank you
Click here to see answer by Alan3354(31487)

Question 301437: what do you do when you have a number to a negative exponent? for example 4 to the -3/2?
Click here to see answer by vleith(2825)

Question 301437: what do you do when you have a number to a negative exponent? for example 4 to the -3/2?
Click here to see answer by richwmiller(9144)

Question 301731: Simplify:
( 27x^3y )
(----------)^3
(9x^-2 y^5)
Click here to see answer by JBarnum(2044)

Question 301743: Simplify
(12x^-3 y^3)
-----------)^0
( 4x^2 y )
Click here to see answer by JBarnum(2044)

Question 302472: How do i solve this equation
-7/12+3/4-(-5/8)-13/24
and 30/6-5/30+2/6
Thank you
Click here to see answer by richwmiller(9144)

Question 302563: Simplify.All variables represent nonzero real numbers.
(3^3/3)^2
Click here to see answer by jim_thompson5910(28696)

Question 302566: Simplify.
(2s^-1t^3/6s^2t^-4)^-3
Click here to see answer by london maths tutor(243)

Question 302561: Can you please help me with this problem.
Simplify. All variables represent nonzero real numbers.
(3y^8/2zy^2)^4
Click here to see answer by london maths tutor(243)

Question 302662: In 1996, an outbreak of a disease infected 14 people in a large community. By 1997, the number of those infected had grown to 40. Find an exponential growth funtion that fits the datta. Round decimals to 3 places.
Thank you,
Click here to see answer by stanbon(57940)

Question 303230: Hello again I am in the middle of a checkpoint for algebra 1A and I can not for the life of me figure this equation out. I would love you help thank you so very much!
-10/17 divided by (-3/17)
iT SAYS DIVIDE IF POSSIBLE
Click here to see answer by Alan3354(31487)

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