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

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Algebra: Negative and Fractional exponents

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Question 85427This question is from textbook
: c3This question is from textbook

Click here to see answer by scianci(186)

Question 85472This question is from textbook algebra
: Find the perimeter of the given figure, not sure what to do.
rectangle shape with the equation to solve.
x/2x-5 and 8/2x-5
please helpThis question is from textbook algebra

Click here to see answer by checkley75(3666)

Question 85471This question is from textbook algebra
: I am having to multiply the fractions, please show me how to do this.
2x^2-x-3 3x^2-11x-20
________ x ___________
3x^2+7x+4 4x^2-9
I really need the help, thanks
This question is from textbook algebra

Click here to see answer by Earlsdon(4900)

Question 85799This question is from textbook Beginning Algebra

: 5 divided by x2 - 16 minus 3 divided by x2 - x - 12This question is from textbook Beginning Algebra

Click here to see answer by stanbon(26297)

Question 85798This question is from textbook Beginning Algebra

: 4 divided by 5x-10 minus 1 divided by 3x-6This question is from textbook Beginning Algebra

Click here to see answer by scianci(186)

Question 85797: 3 divided by x2-4 plus 1 divided by x-2
Click here to see answer by scianci(186)

Question 85796This question is from textbook Beginning Algebra

: 2 divided by y2=y-6 plus 3y divided by y2-2y-15This question is from textbook Beginning Algebra

Click here to see answer by scianci(186)

Question 85924: I am wanting to make sure I did this right. It says solve. I homeschool my 13 year old and I am having trouble checking her work.
2 1/5x - 3/4 = -4 1/2
Thankyou Vickie
Click here to see answer by Earlsdon(4900)

Question 86263: -1/4 -2 * 3/4 -5 * -3
not sure how to type fractions hope it's right if not I apologize (* is )multiplacation
Click here to see answer by stanbon(26297)

Question 86680: add or subtract as indicated. x/x+4-36/x^2-x-20
Click here to see answer by bucky(1732)

Question 87475: Can you help with with solving this:
Simplify.
5/ (5-5/5+x)
Write as a single fraction.
Click here to see answer by Nate(3495)

Question 87575: Simplify.
x^2-7x+10/x^2-4
Click here to see answer by rapaljer(3622)

Question 87584: Factor x^-1/3 out of x^1/3 + x^-1/3
I multiplied x^1/3 by x^-1/3 and got x^-1 and then factored out the x^-1/3 and my answer i got was x^-1/3(i/x + 1) is this correct
Click here to see answer by stanbon(26297)

Question 87616: (1/5)^m(1/4)^18 = 1/2 1/(10)^35
what is the value of m?
answer is 35, but don't have explanation
Click here to see answer by madhujiithcharu@yahoo.co.in(28)

Question 87760: What is the answer to (3x)^-1 ?
Click here to see answer by checkley75(3666)

Question 87891: 7/2x+1/2x=3x+3/2+5/2x=
Click here to see answer by stanbon(26297)

Question 88323: Hello,
I'm having a bit of a difficult time figuring out if I have done this problem correctly, and would greatly appreciate if someone could tell me if I've solved it correctly or if I am way off track, and show me what I need to do.
Here is the original problem that I have to solve: 9/(x-5) - 1 = 8/(x+5).
Here's the solution that I've come to: First, I moved 8/x+5 to the left, so that the equation read like this: 9/x-5 -1 -8/x+5 = 0. Then, I moved -1 to the right of the equation, so that it read like this: 9/x-5 - 8/x+5 -1 =0, which I think is the solution to the problem, right? Is there further solving or simplifying involved that I'm overlooking or is my solution correct?
Thank you very, very much in advance for your help!

Click here to see answer by stanbon(26297)

Question 88611This question is from textbook
: How do you find a solution of the exponential equation, correct to four decimals places.
20. 10^1-x = 6^xThis question is from textbook

Click here to see answer by Earlsdon(4900)

Question 88735: how do i evaluate an expression meaning two to the power of eight over two to the power of three
Click here to see answer by jim_thompson5910(13794)

Question 91034: How do I simplify .4/-.18?
Click here to see answer by checkley75(3666)

Question 91607: Please Help!!!!
rationalize: 3/radical 2
Click here to see answer by stanbon(26297)

Question 91855This question is from textbook algebra and trigonometry

: on this problem i had troubles and wasnt sure what to do can someone fill me in?? write in the simplest form without negative exponents. it is
(2/(over) 3)^-2 (4/(over)5)^-1 This question is from textbook algebra and trigonometry

Click here to see answer by homeworkhelpanytime(21)

Question 91854This question is from textbook algebra and trigonometry

: can someone please tell me if i did this right? i had to write in the simplest form without negative exponents. [(-2)^-2]^-3 = -2^6 therefore i had gotten 64 as my answer.This question is from textbook algebra and trigonometry

Click here to see answer by homeworkhelpanytime(21)

Question 91853This question is from textbook algebra and trigonometry

: once again i had to write in the simplest form without negative exponents. my probelm was 10^-3 and i got 1/(over) 10^3 = 1/(over) 100 is this right??This question is from textbook algebra and trigonometry

Click here to see answer by homeworkhelpanytime(21)

Question 91853This question is from textbook algebra and trigonometry

Click here to see answer by mathispowerful(115)

Question 91852This question is from textbook algebra and trigonometry

: i had to write in the simplest form without negative exponents my problem was (y^-1)^-2 and i got y^2 is that right??This question is from textbook algebra and trigonometry

Click here to see answer by homeworkhelpanytime(21)

Question 92021: Can someone help me simplify this: (3x) (4x^-4)
Click here to see answer by tutorcecilia(2042)

Question 92017: Please help.
e^2x-1 = 30
Click here to see answer by scott8148(3385)

Question 92147: Simplify without negative exponents [ x y^5 / x^-4 y^2 ]^-2
Click here to see answer by anraymer(35)

Question 92608: Simplify using only positive exponents.
-5(3/2)(4-9x)^-.5(-9)

I multiplied -5 times 3/2 and got -15/2, then multiplied this by -9 and got 135/2. So now I have 135/2 times the square root of (4-9x)^-1. Would this simplify to the square root of 1/(4-9x)? If I did this, what would that square root simplify to? I'm not sure if I've done this right so far, and don't know where to go from here.
Click here to see answer by stanbon(26297)

Question 92945: (5a2/6b)(4b/a3)
Click here to see answer by jim_thompson5910(13794)

Question 93176: I need help understanding the polynomials division problems with exponents.

(14y+8y^2+y^3+12) divided by 6+y

Click here to see answer by Edwin McCravy(2922)

Question 93175: The diameter of a rectangle is 1.3x10^-12 meters. What is the radius?
Click here to see answer by scoribritos(3)

Question 93445: Solve:
1 x 10-8
________
4 x 10 7

Click here to see answer by checkley75(3666)

Question 93708: 3(2+3-2(4-5)2-1)-3(2+4(4-2)-8+3(2-5)+1-2)1-3)+4-5
Click here to see answer by jayanthihemkos@yahoo.com(87)

Question 94283: How do I solve this problem. It says to Simplify each expression. Where appropriate express answers with positive exponents. assume base is not zero.

Click here to see answer by jayanthihemkos@yahoo.com(87)

Question 94865This question is from textbook Algebra 1
: 6=4/-7tThis question is from textbook Algebra 1

Click here to see answer by checkley71(8405)

Question 95056: Can you help me with figuring out why a negative times a negative equals a positive?
Click here to see answer by hard(12)

Question 95087: Please help me with this

7/12 minus 6/8
Click here to see answer by checkley71(8405)

Question 95091: Please help me with this.

f(x)=x^2-2, then f(x+2)-f(x)=??
Click here to see answer by tutorcecilia(2042)

Question 95095:
PLEASE HELP ME. I don't understand this question

Click here to see answer by ionesco(12)

Question 95097: I really need help with this....PLEASE, PLEASE
2^8 times 2^-11
For this I just added the exponents and I got
2 to the negative 3rd power.
Because I have 2 to the 8th power, times 2 to the negative 11th power, I just added the exponents of 8+(-11) and I got the answer of 2 to the negative 3rd power. Is this right?

PLEASE HELP ME. I don't understand this question

Click here to see answer by ionesco(12)

Question 95099: I don't know how to do this problem. can someone please help me..please.

"The peremeter of a rectangle is 100ft. One side is 6ft longer than the other side. An equation o find the length of "x" of the shorter side is what????"
Click here to see answer by ionesco(12)

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