Questions on Algebra: Exponents and operations on exponents answered by real tutors!

Tutors Answer Your Questions about Exponents (FREE)

Question 57675: i need help with 9x^6y^2/15x^5y^5
Click here to see answer by funmath(2925)

Question 57717: I have no idea what this is called but a sample problem is ax+by=c and you have to solve for y.
Click here to see answer by mszlmb(115)

Question 57781: (5x)(6x-1) = ?
Dad and student disagree on question. Thanks!
Click here to see answer by Cintchr(481)

Question 57906: hi, i need some help with this problem to simplify it as much as possible...
x^2y^-3z^-5
___________
x^-4y^3
Thanks!
Click here to see answer by funmath(2925)

Question 58003: 5(n+1)<5n
Click here to see answer by Cintchr(481)

Question 58197: FInd all solutions to;
2x^2 + 4 = 7x
Click here to see answer by checkley71(8403)

Question 58280: Let C = 64/27. Then find C with exponent -2/3.
Click here to see answer by funmath(2925)

Question 58543: 1000 cents = $10
(1000 cents)squared = 1,000,000 cents = $10,000
($10)squared = $100
Why doesn't squaring $10 give you the same number in dollars as squaring 1000 cents?
Click here to see answer by checkley71(8403)

Question 58791: How do I divide exponents that have negitive bases? I have one problem that has it. It is -16 x to the fourth power divided by -24 x to the 2 power.
Click here to see answer by checkley71(8403)

Question 58989: (10x^2)^-3 OVER (5xy^-3)3 TIMES (y^8 x^2)^4 OVER (xy^2)^4 if you can help me with this that would be fantastic!!
Click here to see answer by funmath(2925)

Question 59095: Please help w/ the following:
27x^3-8=0
Thank you.
Click here to see answer by funmath(2925)

Question 59132: simplify 16x5y4 divided by 32xy7
Click here to see answer by funmath(2925)

Question 59165: What is the difference between x^2 and (x)^2
Thank you!

Click here to see answer by checkley71(8403)

Question 59320: 5 cubed (5a to the fourth)cubed
Click here to see answer by funmath(2925)

Question 59364: Simplify the expression:

Click here to see answer by Edwin McCravy(8880)

Question 59749: Determine the solution or solutions of each equation

Click here to see answer by uma(370)

Question 59712: Simplify and leave with positive exponents:
( x-1 y2 z )-2 / (x-3y3z)-1

all of the numbers are exponents but somehow you can't see it

Click here to see answer by funmath(2925)

Question 59887: This is from my teacher and we have to solve it and I am not sure if you can reduce first and then do the exponents. Here is the problem and it didn't come from a specific math book.
(-5a)^4/(-15a^2b)^3
I took out -5a, then I ended up with 1^4/(3ab)^3 is this correct. You can show this online. Thanks
Click here to see answer by stanbon(57219)

Question 59932: Express each result with positive exponents. The problem is
7m to the third n to the 12th over 7m n to the 15th
7m3n12
------
7m n15
Click here to see answer by funmath(2925)

Question 59943: 120m16/45m8

Click here to see answer by funmath(2925)

Question 59967: I AM TOTALLY STUCK AND NEED YOUR HELP.
please assit with the following Homework its needed tommorow morning and am so stuck ....
National poverty eradication finance (NPEF) offers credit to operations in the informal sector. However NPEF is concerned as to how long it will take to collect the accounts receivable for credit issued in any given year. Data gathered over a number of years have indicated that the collection amount for Ksh. 100 thousand credits issued in any year is as follows:
Year (t) 1 2 3 4
Amount collected 6.1 12.3 24.7 50

a) Determine the better collection function among linear , quadriatic and exponential (e-form)
b) Project collections for 5 th and 6 th year since a ksh.100 thousand credit was issued

Click here to see answer by tutorcecilia(2152)

Question 60031: (x3+x2)+(2x4+2x3+5x2)
Do you add of muliply the exponents?
Click here to see answer by tutorcecilia(2152)

Question 60664: PLEASE HELP SOLVE:
(3PQ)Q^2 / 6P^2 Q^4
Click here to see answer by funmath(2925)

Question 60968: find the units digit of 3^13*7^14 without actual multiplication
Click here to see answer by joyofmath(189)

Question 60975: Help please - I need this layed out so I can do it for my final submission - Thank you.
(4x^3y)1/2 (in superscript) over (9xy) 1/2 superscript
The question is - perform the operation. Write the answers without negative exponents. Assume that all variables represent positive numbers. THANK YOU
Click here to see answer by funmath(2925)

Question 61287: The volume of a cube, or the amount of space that it occupies, is the product of the length, width, and height. Use exponents to write an expression for the volume of the cube. There is a picture of a cube that has the height of 3 cm, the length of 3 cm and the width of 3 cm.
Could the answer be----12(3 squared cm squared) ?
Click here to see answer by joyofmath(189)

Question 61286: A man burns approximately 121 calories by standing for a hour. A woman burns approximately 100 calories per hour when standing. Write each of these numbers as a power with an exponent other than 1.
Click here to see answer by checkley71(8403)

Question 61576: I know when dividing fractions the second set you flip and then it becomes multiplication. But what if you have three sets??
8/21 / (-4/7) / 4/3
Click here to see answer by stanbon(57219)

Question 61581: What is the greatest common factor of the monomial 20x squared and 8x?

Click here to see answer by stanbon(57219)

Question 62140: simplify by combining like terms

7xysquared-7x-x+xysquared
Click here to see answer by stanbon(57219)

Question 62328: May you help me solve this question? The question is 3[x-2y(x+2y)-3y^2)].
Thanks! :)
Click here to see answer by 303795(595)

Question 62417: Hi,
Can you please show me the steps needed to solve this?
((3^-2)^a).((3^b)^-2a)
----------------------
((3^-2)^b).((9^-b)^3a)
three to the negative two to the a times three to the b to the negative two a
divided by
three to the negative two to the b times nine to the negative b to the three a
Thanks in advance!!
Ray
Click here to see answer by Edwin McCravy(8880)

Question 62272: Perform the operations and simplify. 2/(x^2 - 4x +3) + 3/(x^2 - 8x + 15) - 6/(x^2 - 6x + 5)
Click here to see answer by gsmani_iyer(180)

Question 62478: Find the quotiet. Write your answer using only positive exponets.
10^-4 divided by 10^5
Click here to see answer by checkley71(8403)

Question 62477: Find the quotient. Write your answer using onlypositive exponets.
5^6 divided by 5^12
Click here to see answer by josmiceli(9649)

Question 62572: i need help on this equasion: 8 to the power of 2/3 times 8 to the power of 1/3
Click here to see answer by funmath(2925)

Question 62572: i need help on this equasion: 8 to the power of 2/3 times 8 to the power of 1/3
Click here to see answer by Nate(3500)

Question 62573: An astronomical unit is the mean distance between the earth and our sun, 1.496 times 10 to the power or 8 km. It's symbol is au. A light year is the distance that travels in 1 year in a vacuum, 9.461 times 10 to the power of 12 km. Its symbol is ly. How many astronomical units are in 1 light year?
Click here to see answer by Nate(3500)

Question 62575: i need help with this equasion: 8 to the power of 2/3 times 8 to the power of negative 2/3
Click here to see answer by funmath(2925)

Question 62620: i need help with this equasion: (10^50 divided by 10^48) plus (10^48 divided by 10^50)
Click here to see answer by Earlsdon(6287)

Question 62629: i really need some help with this equasion: x^4 over x^5 times x^ negative 2 over x. I've tried adding the top exponents which is x^2 and then I added the bottom exponents which is x^6 i think and then I put x^2 over x^6 then I put it x^2-6 which equals x^ negative 3 put I don't think thats right so if you could help me I would be very happy! thankyou
Click here to see answer by checkley71(8403)

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