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Your Questions About X 102.3

February 16, 2013

Sharon asks…

10 points: How do you add these polynomial fractions?

102. 3/(x-4)(x+5) + x/(x-1)(x+5)

Administrator answers:

For the first fraction, multiply top and bottom by x-1 and for the second, multiply it by x-4.
Note: Its not actually multiplying but I use it for lack of a better word.

3(x-1)/(x-4)(x-1)(x+5) + x(x-4)/(x-4)(x-1)(x+5)

Now that their denominators are equal just add them.

3(x-1) + x(x-4)/(x-4)(x-1)(x+5)
(3x – 3 + x^2 – 4x)/(x-4)(x-1)(x+5)
(x^2 – x -3)/(x-4)(x-1)(x+5)

Daniel asks…

what are some less popular rap songs that were on the radio around 2001-2003?

Ive been trying to find this one song for years i heard on the radio(x 102.3)in south FL back then but can’t find out what it is. it goes something like “i never thought that you would turn me down” on the chorus. it sounds like trick daddy with trina but i really can’t find it anywhere! all i know are the instrumentals on it. please help if you know i have been searching for years!

Administrator answers:

Ja rule- so much pain
nate dogg- i got love

Steven asks…

Would you please solve these problems for me and explain how you got the answer?Thanks?

Simplify the exponential expression.
1)

24x2y3z
???????
10xz2

2)

Perform the computation. Write the answer in scientific notation.
10. (4 x 102)(3 x 105)

Administrator answers:

24 x 2y3z 24 x 2 x 3 x yz 144yz
————– = ———————- = ————– = 7.2 y
10 x 2z 20z 20z

since multiplication is commutative, you can move the numbers, y, and z around.
On the last step you do 144/20. Then z/z=1, so its 7.2y.

10(4 x 102)(3 x 105) = 10 (408) (315) = 1,285,200 = 1.2852 x 10 ^ 6

1.2852 x 10 to the 6 power

Betty asks…

substititue (x+y)3(cube) to (102)3(cube) and find the value?

Pls help with this algebra

Administrator answers:

(x + y)^3

Expand

(x + y) * (x + y) * (x + y) =>
(x^2 + xy + xy + y^2) * (x + y) =>
(x^2 + 2xy + y^2) * (x + y) =>
(x^3 + x^2 * y + 2x^2 * y + 2x * y^2 + x * y^2 + y^3) =>
x^3 + 3x^2 * y + 3xy^2 + y^3

Now, let’s look at 102^3

102 = 100 + 2
x = 100
y = 2

x^3 + 3x^2 * y + 3xy^2 + y^3 =>
100^3 + 3 * 100^2 * 2 + 3 * 100 * 2^2 + 2^3 =>
1000000 + 3 * 10000 * 2 + 3 * 100 * 4 + 8 =>
1000000 + 60000 + 1200 + 8 =>
1060000 + 1208 =>
1061208

Mandy asks…

Find the value of x. (Midsegment)?

1.)Find the value of x.

http://i167.photobucket.com/albums/u142/XOJustaGurlOX/q.jpg

7
14
21
28

2.)Find the value of x.

http://i167.photobucket.com/albums/u142/XOJustaGurlOX/w.jpg

17
34
51
102

3.)Find the value of x.

http://i167.photobucket.com/albums/u142/XOJustaGurlOX/e.jpg

11
14
77
90

4.)Name the segment parallel to AB
. http://i167.photobucket.com/albums/u142/XOJustaGurlOX/r.jpg
AC
XZ
ZY
XY

Thanks so much!!!

Administrator answers:

1. 28
2. 34
3. 11
4. ZY

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