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

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Algebra: Exponents and operations on exponents

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Question 39776This question is from textbook pre -algebra
: help with multiplication/division of monomials; negative exponentsThis question is from textbook pre -algebra

Click here to see answer by fractalier(1804)

Question 35325: Hi I am having trouble with this question. Can you help?
9^(4x-3)=4^(2x-4)
Click here to see answer by fractalier(1804)

Question 40149: A rectangle has sides of 3x – 4 and 7x + 10. Find the expression that represents its perimeter.

Click here to see answer by Nate(3495)

Question 40283: 7a/15b-2b/5
Click here to see answer by fractalier(1804)

Question 40235: ac-1 - a-1c
(A times C to the negative one MINUS A to the negative one times C)
Click here to see answer by fractalier(1804)

Question 35761: Combine like terms:
3x^3+5xy+x^3-xy
Click here to see answer by fractalier(1804)

Question 40181:
im totally44 lost on this
thanks

the top 2 is right above the 3 little rightish

2
[(2+3) -4.5] 7
Click here to see answer by Nate(3495)

Question 40644: 56. help--
A bus leave a station at 1 p.m. , traveling west an average rate of 44 mi/h. One hour later a second bus leaves the same station,traveling each at a rate of 58 mi/h.At what time will the two buses be 274 mi apart?
Click here to see answer by Nate(3495)

Question 40633: I'm really lost on how to do these.
Depreciation,solve the literal equation for the indicated variable.
D = c- S
______ (for s)
N

Click here to see answer by stanbon(26295)

Question 34989: x^6*X^7
Click here to see answer by fractalier(1804)

Question 41002: (3x)(x2)^4
Click here to see answer by fractalier(1804)

Question 41160: How do I carry the exponent to the other side? I need to find k
(1+k)^3=2
Click here to see answer by josmiceli(3012)

Question 41850: Expand and simplify (2-(1/n))^6
Thanks
Click here to see answer by fractalier(1804)

Question 41945: i have no idea. It says evaluate the exonential expression. write answers as a fraction in simplest form

1. (1/2)1-

2. 73 with 0 power

3. 13-x=

4. 4-2

i don't know what this stuff is
Click here to see answer by tutorcecilia(2042)

Question 42169: -2x+3[x-(-2x+5)]=-(15+2x)
Click here to see answer by fractalier(1804)

Question 42169: -2x+3[x-(-2x+5)]=-(15+2x)
Click here to see answer by fatump(1)

Question 42319: (t+2)^3(t^2+2t+1)(t+1) over (t+1)(t^2+4t+4)(t+2)
show work
Click here to see answer by longjonsilver(2297)

Question 42358: x^2 over 4x-12
show work
Click here to see answer by psbhowmick(456)

Question 42442: t^2-9 over 5t+15
show work
Click here to see answer by rapaljer(3622)

Question 42444: t^2-9 over 5t+15
show work
Click here to see answer by rapaljer(3622)

Question 42439: 14 over -5y
show work
Click here to see answer by rapaljer(3622)

Question 42509: Identify the base in the statment "50% of 300 is 150."
I believe it is 50% am I correct?
Click here to see answer by nik_consult(24)

Question 42510: Identify the rate in the statment " 260 is 52% of 500."

I believe it is 500,am I right?
Click here to see answer by wuwei96815(245)

Question 42633: solve having problems with this one
x^2-9 over 4x-12 show work
this is what I came up with
(x-3)(x+3) over 4(x+3)
answer: x-3 over 4
Click here to see answer by checkley71(8405)

Question 42669: List all numbers for which each rational expression is undefined:
14 over -5y
show work
Click here to see answer by rapaljer(3622)

Question 42631: solve
(t+2)^2(t^2+2t+1) over (t+2)(t^2+2t+2)
show work
Click here to see answer by Nate(3495)

Question 42671: r(t)=t^2-5t+4 over t^2-9

r(1) r(2) r(3)
Click here to see answer by rapaljer(3622)

Question 42668: x^3-27 over 5x^2+15x+45
show work
Click here to see answer by rapaljer(3622)

Question 42629: solve
14 over -5y
show work

Click here to see answer by rapaljer(3622)

Question 42870:
I believe the answer is y = 4x
am i right?
Click here to see answer by fractalier(1804)

Question 42782: Can you give me some tutoring on exponents and some operations...answer please if my e-mail gets lost here it is again:cmlilo13@yahoo.com
Click here to see answer by psbhowmick(456)

Question 43316: Help with this one please.
Solve for x exactly
5^x+4 = 25^x+3

Click here to see answer by psbhowmick(456)

Question 43416This question is from textbook Intermediate Algebra
: x-2 = x+2/4 + 5
I know that x is 10, but I need to know how to figure that out.This question is from textbook Intermediate Algebra

Click here to see answer by fractalier(1804)

Question 43526: Can you tell me if I have simplified this equation correctly?
(9y^2/(x^-8*y^0))^1/2
I first found that y^0 = 1. So that would drop out of the equation.
Then I thought that raising to the 1/2 is the same as taking the square root of the equation.
So I now have the square root of 9y^2 / square root of x^-8.
The square root of 9y^2 is 3y. So I now have 3y/square root of x^-8.
I think that a negative exponent is the reciprocal of the positive so I now have 3y * square root of x^8. And x^8 is x^4 * x^4. So if I take the square root of x^4 is x^2. So I ended up with 3y*2x^2. Is that right?

Click here to see answer by Earlsdon(4900)

Question 43689: How do I solve this:
example- 12a^3b+15ab^3=3ab(4a^2+5b^2)
*This is called the Greatest Common Monomial Factor
*****This is from a worksheet
Click here to see answer by stanbon(26295)

Question 40634: I'm really lost on how to do these.
Depreciation,solve the literal equation for the indicated variable.
D = c- S
______ (for s)
N

Click here to see answer by stanbon(26295)

Question 37204This question is from textbook Glencoe Algebra 1
: 4 with an exponent of 1.7This question is from textbook Glencoe Algebra 1

Click here to see answer by stanbon(26295)

Question 43832This question is from textbook intermediate algebra
: Please help me. The instructions are: simplify each expression. Assume that all variables represent positive numbers. Write with only positive exponents.
(a) to the 1/3 power, (a) to the 4/3 power, (a) to the 1/2 power.
First I wrote them all in Radical Form and tried to find the cube root of each of them, but I don't understand what to do.
Thanks so much!This question is from textbook intermediate algebra

Click here to see answer by tutorcecilia(2042)

Question 43835This question is from textbook intermediate algebra
: Please help me. The instructions are: Simplify each expression. Assume that all variables represent positive numbers. Write with only positive exponents. Here is the problem.
^1/3
I wrote this problem as a Radical Function but I don't know what to do after that.
Thanks so much.This question is from textbook intermediate algebra

Click here to see answer by fractalier(1804)

Question 43836This question is from textbook intermediate algebra
: Please help me. The instructions are: Use rational exponents to write each radical with the same index. Then multiply. Here is the problem.
The cube root of 2, times the square root of 7.
I don't know how to get the index's the same.
Thanks so much.This question is from textbook intermediate algebra

Click here to see answer by stanbon(26295)

Question 43939: I have three problems that I am having trouble solving I hope that is okay. Here they are with what work I have done.
simplify: (3x^4)^2(4x^-5)^-1/12x^-6 = (3x^4) (3x^4)=9x^8
9x^8 * 4x^-6/12x^-6
simplify 4th root of (x^5 divided by 16y^15)
simplify: (x^1/4y^1/2)^2(x^2y^3)^1/2
thank you so much
Click here to see answer by stanbon(26295)

Question 44464: Find the slope and y-intercept.
x = –8
A) Slope: undefined; y-intercept: (0, –8) C) Slope: undefined; y-intercept: none
B) Slope: 0; y-intercept: none D) Slope: 0; y-intercept: (0, –8)

Click here to see answer by Nate(3495)

Question 45255: how do u solve (x+1)(x^2+x-1)
Click here to see answer by Nate(3495)

Question 45332: solve for a by completing the square:
a^2-10a+1=0
Click here to see answer by Nate(3495)

Question 45332: solve for a by completing the square:
a^2-10a+1=0
Click here to see answer by tutorcecilia(2042)

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