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

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Question 100441: I,m having problems simplifying this fraction, can you help please?
(2n^2*3n^3) / (6n^7)
Click here to see answer by checkley71(8403) About Me 
Question 101180: book instructions perform indicated operations. leave all answers in terms of positive exponents.
problem:
39.
(2b^2/y^5)^-3
is this the only solution?
1/(2b^2/y^5)^3

Click here to see answer by Earlsdon(6294) About Me 
Question 101269: 1/3(X-4)+ 5/6(X+2)= X+3

Thanks.
Click here to see answer by stanbon(75887) About Me 
Question 101297: From the compass study guide.
Algebra Placement Test Sample.
The question reads as follows.
11.For all nonzero r,t, and z values, 16r^3tz^5/-4rt^3z^2=?
I need a step by step explaination.
Click here to see answer by Earlsdon(6294) About Me 
Question 101910: We have tried and tried to find the answer, but can't seem to figure out when to use the multipicative inverse to solve it. The problem is:
2^2x = 8^(x-1) Hope you can help. Thanks!
Click here to see answer by stanbon(75887) About Me 
Question 102079: I wasn't sure how to classify my question, but here it is. Fill in the blank in the following pattern: 0,1,64,243,256,125,____,7,1. The answer is 36, but I can't solve it. I think it has something to do with squaring or cubing the numbers, but I can't figure it out. Please help. Thanks.
Click here to see answer by Fombitz(32388) About Me 
Question 102265: What is negative two thirds plus negative three fifths?
Click here to see answer by edjones(8007) About Me 
Question 103168: Please show me the steps to solving this problem:
-d/7 = -13
Click here to see answer by MathLover1(20850) About Me 
Question 103168: Please show me the steps to solving this problem:
-d/7 = -13
Click here to see answer by Fombitz(32388) About Me 
Question 103476: -12h = 48

-12h = 48
----- ----
-12 -12
h = -4
is this correct....Thanks
Click here to see answer by doukungfoo(195) About Me 
Question 103490: -34 = r/-3

-34 x -3 = r/-3 x -3
102 = r is this correct...Thanks
Click here to see answer by stanbon(75887) About Me 
Question 103534: HELLO,HOW DO YOU CHANGE FROM EXPONENTIAL TO RADICAL FORM AND FROM RADICAL TO EXPONENTIAL. CAN YOU GIVE SOME EXAMPLES? THANKS!!!!
Click here to see answer by stanbon(75887) About Me 
Question 103741: why is it that a negative plus a negative equal a positive
Click here to see answer by stanbon(75887) About Me 
Question 103968: %283x%5E3%29%2F%28x%5E3%2B27%29+-+x%2F%28x%2B3%29+%2B+%282x%5E2%29%2F%28x%5E2-3x%2B9%29
Click here to see answer by jim_thompson5910(35256) About Me 
Question 103019: how would i go about solving this equation
1\5x^1/2 -1=19
Click here to see answer by edjones(8007) About Me 
Question 104195: factor each polynomail
m2+16m+64
Click here to see answer by checkley75(3666) About Me 
Question 104140: Simplify the following expressions

A.) -3^-2
B.) (-3)^-2
Click here to see answer by edjones(8007) About Me 
Question 104529: Three probelms, two I think I got correct and one I know I didn't.
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Add. Express your answer in simplest form.

(8/s)+(8/(s^2)) I came up with an answer, but it was not in the choices offered, so I haven't got a clue!!! :o(
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Simplify. (a^7b^2)^7
I came up with a^14b^9, correct?
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Solve by using the quadratic formula. 5x^2 + x = 3
I came up with -1+-sqrt61/10, correct??
Thanks for all the help that is offered!!!


Click here to see answer by edjones(8007) About Me 
Question 104591: I asked this earlier. Thanks Ed for replying. I could npt get the site to open where I could say thanks. I got the same answer as you did on the first problem I submitted, however like I stated before it was not an option. Here are all the options I was given. PLEASE help me!!
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Add. Express your answer in simplest form. (8/s)+(8/(s^2))

A)16/s^2 B)8s+8/s^2 C)8s+8/s D)16/s
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During rush hour, Bill can drive 15 miles using the side roads in the same time that it takes to travel 10 miles on the freeway. If Bill's rate on the side roads is 8 mi/h faster than his rate on the freeway, find his rate on the side roads.
I answered....rate on side roads = 24, correct?
Click here to see answer by edjones(8007) About Me 
Question 104701: Hi there! I am having terrible trouble trying to simplify this expression. Instructions say to simplify and express the answer using positive exponents.
[2x^(3/4)*y^(-1/2)]^(-8)
Click here to see answer by Fombitz(32388) About Me 
Question 104734: The directions say, "Simplify each expression." How do you solve the problem r^3t^-7/t^5
I tried dividing the "t"s first. (I though you have to do like terms.) Thanks!
Click here to see answer by duggie(26) About Me 
Question 104858: 6(w-5)-3w=w+10
Click here to see answer by Earlsdon(6294) About Me 
Question 105245: Solve the following proportion for y:
the fraction Y over 6 = the fraction of y + 1 over 4
Click here to see answer by edjones(8007) About Me 
Question 105377: 32^(-4/5)
Click here to see answer by HyperBrain(694) About Me 
Question 106011: please help me...i'm getting sick with this problem.....
+2%2B%281%2F%281-%281%2Fx%29%29%29+over+2-%283%2F%281-%281%2Fx%29%29%29+
Click here to see answer by chitra(359) About Me 
Question 106097: -47w = 40 + 13w
Click here to see answer by MathLover1(20850) About Me 
Question 106162: Find the value of 7 to the -3.
(7 with -3 exponent)
Click here to see answer by stanbon(75887) About Me 
Question 106245: +6ax%5E4%2F14x%5E2y%5E2+ x +2y%5E3%2F3a%5E4+ I understand from the book I have that when simplified you get the followin results: x%5E2%2F7 x 2y%2Fa%5E3 = 2x%5E2y%2F7a%5E3 I understand how the letters are cancelled out what I do not understand is why the numbers6 and 3 disappear, the 14 halves to 7 and the 2 does not change? Pleae could you help me?
Click here to see answer by edjones(8007) About Me 
Question 106302: Solve for s
S=2n+2v
Click here to see answer by elima(1433) About Me 
Question 107032: Stepdaughter called from Oregon with this problem....

3x + y =18
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x +3y = 14
Click here to see answer by scott8148(6628) About Me 
Question 107400: a-8/12=2a+5/3
Click here to see answer by checkley75(3666) About Me 
Question 107586: I need to solve an equation where the exponent is the variable, and obviously I can't figure it out properly. I can get the correct answer by guessing but not with proper techniques. Can anyone help show me the correct method? The problem is solve for x given 8^x=4. Thank you.
Click here to see answer by josmiceli(19441) About Me 
Question 108623: -9^-3/2
Click here to see answer by checkley71(8403) About Me 
Question 108832: Express to a positive exponent then find its value
(2/3)^-2
Click here to see answer by stanbon(75887) About Me 
Question 109047: Perform the indicated operations:
(5x2 – 3x + 2) + (-3x2 – 5x – 8) – (x2 + 3x – 10)
Click here to see answer by stanbon(75887) About Me 
Question 109049: Multiply:
(4x + 1)(2x2 + x + 1)
Click here to see answer by stanbon(75887) About Me 
Question 109048: Use FOIL to multiply:
(5x – 8)(x – 7)
Click here to see answer by stanbon(75887) About Me 
Question 109048: Use FOIL to multiply:
(5x – 8)(x – 7)
Click here to see answer by Demi5000000(8) About Me 
Question 109046: For f(x) = 2x – 11, find f(2)
Click here to see answer by bucky(2189) About Me 
Question 109045: Convert to scientific notation (here you may use x as multiplication):
0.000347
Click here to see answer by stanbon(75887) About Me 
Question 109129: What is answer for (8b to the second power)(2b to the -8)(2b to the 6)
Click here to see answer by MathLover1(20850) About Me 
Question 109533: true or false: a negative number raised to an odd power is negative? true or false? thanks
Click here to see answer by stanbon(75887) About Me 
Question 109532: hi i really need some help here. the sum of 3 consecutive integers is -9. what are the integers? thanks!!!
Click here to see answer by edjones(8007) About Me 
Question 109677: How do you write x^-3/8 in radical form?
Click here to see answer by checkley71(8403) About Me 
Question 109746: True or false: a negative number raised to an odd power is negative. true or false? any help will be greatly appreciated.
Click here to see answer by beccadancer15(3) About Me