Questions on Algebra: Numeric Fractions answered by real tutors!

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Question 144500: Multiply and express the product in the simplest form.

(x - 3)^3/2^3 * 1^2/(x-3)^2
Could someone explain how I should solve that problem?
Click here to see answer by vleith(2983)

Question 144501: Add or subtract as indicated. (finding LCD)
b/b-1 + 2b/b^2-1
a-1/a+1 + a+1/a-1
4/a-5 - 1/5-a
It would be cool if someone could explain that to me!
Click here to see answer by vleith(2983)

Question 144498: Some students simplify:
2x^2 - 32 / x-4 as 2x^2 - 32 / x-4 = 2x-8
Choose values of x to show this is not true. Then simplify it correctly.
May be someone could help me with thise problem.
Click here to see answer by stanbon(75887)

Question 144496: Simplify each of the following fractions. If they are already simplified say so.
a^2- 2ab + b^2
--------------
a - b
a^2 - 2ab + b^2
----------------
a + b
Could someone maybe explain how I would solve those problems?
Click here to see answer by Alan3354(69443)

Question 144640: Find the area of a triangle with base 1ocm and corresponding height 4cm.
Click here to see answer by Alan3354(69443)

Question 144680: Simplify
3x/x + y - 2y/x
Click here to see answer by solver91311(24713)

Question 144686: simplify
2x -10/x2power - 25 divided by x2power - 2x -15/x2power - 4x - 5
Click here to see answer by faceoff57(108)

Question 144810: ho to change to an mixed number. 109 over 11
Click here to see answer by jim_thompson5910(35256)

Question 144818: since i didnt understand the multiplying part, i didnt really understand the division part either, would be cool if someone could also explain this problem to me; x^2+5x+4/(x+3)^2 divided by x+1/x^2-9.
Click here to see answer by solver91311(24713)

Question 144816: i dont really understand this either really; x^2-9/x-2 * x^2-4/x-3
i think i solved it totally wrong since i first multiplied the top then the bottom and got x^4 - 13x^2 +36 / x^2 - x - 6.
could someone please show me how to solve it right?
Click here to see answer by solver91311(24713)

Question 144812: i totally dont understand this problem; (x-3/2)^2 * (1/x-3)^2
could someone may be explain how i should simplify it?
Click here to see answer by vleith(2983)

Question 144823: 3/8 less than $40 is
27/64 express as a percents is
Click here to see answer by vleith(2983)

Question 144843: Points A,B,C,and D are placed in that order on a line so that AB = 2BC = CD. Then,
BD as a fraction of AD is
Click here to see answer by shahid(44)

Question 145332: 2x+5=9

Click here to see answer by jim_thompson5910(35256)

Question 145477: True or fasle when multiplying fractions, the denominators must be the same.

and true or fasle the least common multiple of any two distinct prime numbers is the product of the prime numbers ?
Click here to see answer by vleith(2983)

Question 145544: I'm trying to understand how to multiply mixed fractions for example 389 3/7* 245 1/3
Click here to see answer by ptaylor(2198)

Question 145595: what is inequality?
Click here to see answer by solver91311(24713)

Question 146052: the problem:
1/2 + 3/x = x+6/2x
How does the x get from denominator to numerator? I'm not sure how to work the problem to get the x on top.
Please help explain this. Thank you.
Lorraine
Click here to see answer by Edwin McCravy(20054)

Question 146157: The following data are the distance from the workplace (in miles) for the 6 employees of a small business:
15, 16, 14, 16, 19, 4
Assuming that these distances constitute an entire population, find the standared deviation of the population. Round answers to at least two decimal places.
Click here to see answer by stanbon(75887)

Question 146252: Write the equation of the line L satisfying the given geometric conditions.
L has Y-intercept (0,-3) and is parallel to the line with equation y=2/3x+1 - did not match any documents.
I am not sure exactly what they are asking for can you please help me with this.
thanks
Click here to see answer by jim_thompson5910(35256)

Question 146251: Write the equation of the line L satisfying the given geometric conditions.
L has Y-intercept (0,-3) and is parallel to the line with equation y=2/3x+1 - did not match any documents.
I am not sure exactly what they are asking for can you please help me with this.
thanks
Click here to see answer by jim_thompson5910(35256)

Question 146290: how would i do this? Simplify the following fraction by putting it in lowest terms or by performing the indicated operation.
4x2-4x+1 over 8x3-1
Click here to see answer by jim_thompson5910(35256)

Question 146299: how would i do this? Simplify the following fractions by putting them in lowest terms or by performing the indicated operations.
xy-zy over y times xw-xy over yz yw
Click here to see answer by checkley77(12844)

Question 146420: 6+29.27-(-16)
Click here to see answer by checkley77(12844)

Question 146690: A line passing through (4, 11) and (1, y) is parallel to a line with slope 2. What is the value of y?
Can someone show me how to work this problem out. Thanks
Click here to see answer by nerdybill(7384)

Question 146836: how would i do this? Simplify the following fractions by putting them in lowest terms or by performing the indicated operations.
a-ab over a2 divided by a-1 over a cubed
Click here to see answer by stanbon(75887)

Question 146835: how would i do this? Combine the following fractions by addition or subtraction as directed
7 over xz + 2 over xy 4 over yz
Click here to see answer by stanbon(75887)

Question 146857: how would i do this? Combine the following fractions by addition or subtraction as directed
3 over a+2 + 4 over 2-a - 6 over asq. - 4
Click here to see answer by Fombitz(32388)

Question 146872: how would i do this? Combine the following fractions by addition or subtraction as directed

3a-4 over 5 + 7a-2 over 15 -4a+7 over 10
Click here to see answer by mangopeeler07(462)

Question 147362: Factor; 4a^2-4a+1
I did it just like by this problem; a^2-9= a^2-3^2= (a+3)(a-3, but it was wrong.
Click here to see answer by jim_thompson5910(35256)

Question 147360: Find the LCD of; 3/a, 3/b, 1/5, I thought that 5 was the LCD but it wasnt, could someone please explain why?
Click here to see answer by jim_thompson5910(35256)

Question 147361: Simplify the following, assume a,x and y are not zero.
-x^2y/ (-x^2)^2y^2
I totally didnt understand this problem.
Click here to see answer by jim_thompson5910(35256)

Question 147359: Choose values of x, then simplify it correctly.
10x^2-30x+20/x^2-1
I did something wrong on that one, maybe someone could show me how it works.
Click here to see answer by vleith(2983)

Question 147513: Expand
Q1 (a-3b)2

Click here to see answer by jim_thompson5910(35256)

Question 147865: Rewrite the equation 2x – 3y = –6 as a function of x
Can someone please show me how to do this.
thanks
Jessica
Click here to see answer by scott8148(6628)

Question 147871: 3x+7=-5-4
Click here to see answer by stanbon(75887)

Question 146834: how would i do this? Simplify the following fractions by putting them in lowest terms or by performing the indicated operations
81-x to the 4th over 3-x divided by 9+x2 over 9 =
Click here to see answer by mangopeeler07(462)

Question 148099: Factor: x^2+3x+2 and 72-22x+x2
I dont really understand how to factor it. Could someone maybe please explain it to me?
Click here to see answer by mangopeeler07(462)

Question 148188: Determine which two equations represent perpendicular lines.
a)y=4/9x-3
b)y=3x-4/9
c)y=-1/3x+4/9
d)y=1/3x-4/9
Can someone please help me out?
Jess
Click here to see answer by mangopeeler07(462)

Question 148214: 27. Write the following phrase using symbols. Use the variable x to represent the number.
A number increased by by 3
Can someone help me out with this?
V/r
Eddie
Click here to see answer by mangopeeler07(462)

Question 148236: i need help on how to solve this problem
(3/4 - 2/3) + (1/2 + 1/3)=
Click here to see answer by Earlsdon(6294)

Question 148287: Which are likely to be independent events? For those you think are not, suggest reason why.
a. Gender of two consecutive babies born in a hospital.
b. Car accident rates and the driver�s gender.
c. Phone call arrival rates at a university admissions office and time of day.

Click here to see answer by Edwin McCravy(20054)

Question 148288: Which are likely to be independent events? For those you think are not, suggest reason why.
a. Gender of two consecutive babies born in a hospital.
b. Car accident rates and the driver�s gender.
c. Phone call arrival rates at a university admissions office and time of day.

Click here to see answer by edjones(8007)

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