Mathematics - 7 September 2006

i'm taking a linear algebra class and i have the concepts down but the algebra is killing me!! how do i get from:

V = (2V) / (1-V^2)

to

(V+V^3) / (1-V^2) ???


Can anyone explain what in the world happened???

THANKS!!!!

2006-09-07 09:25:22 · 8 answers · asked by dvl_n_dskyz 3

or is the answer 19 ..?? solve whats in parenthesses(23) then divide 8/2 (which is 4) then minus 23 by 4..??but wouldnt i only divide the 8 by 2 if its only in parenthesses?? wouldnt my first answer be right?

2006-09-07 09:23:20 · 9 answers · asked by LoVeLy 3

This is ALL of the information that is given to the question.

In some codes, letters are switched with other letters. One way to break this kind of code is to examine the frequencies of the letters used in everyday language and then to compare these frequencies with the frequencies of letters used in the coded message.
The location of the letters in a word can also help you to decide which letters are vowels.

Decode the following FRENCH message:
MA PATTJYA ATN NEAT TVPBXA KA NEDGOAE.

2006-09-07 09:17:38 · 5 answers · asked by many men 1

i need to factor
2xsquared-482x-12144
in this form 2x( )( )

2006-09-07 09:13:29 · 7 answers · asked by Fries 4

how do i find the horizontal and vertical asymptotes?
thanks for the help.

(1) / (x^2 + 4x + 4) would the vertical asymp. be -2?

2006-09-07 09:12:27 · 2 answers · asked by shih rips 6

Okay.. My algebra book says this:

Explain why the |absolute value of A over B| = A over B is NOT always true. I DONT KNOW! Please helppp!

2006-09-07 09:08:53 · 10 answers · asked by Anonymous

2006-09-07 09:02:30 · 5 answers · asked by april g 1

2006-09-07 08:59:05 · 4 answers · asked by Bob B 1

f(x) = (x^4 +1) / x^2 . find f '(x) .

2006-09-07 08:58:52 · 8 answers · asked by Asker 1

2006-09-07 08:49:30 · 4 answers · asked by april g 1

2006-09-07 08:40:19 · 9 answers · asked by april g 1

if n1, n2 , n3 , ... , nn
-8 , -2 , 4 , ... , 40
pleasefind for me n . thanks you so much.

2006-09-07 08:38:10 · 4 answers · asked by Asker 1

2006-09-07 08:36:36 · 5 answers · asked by redheadsushi86 1

how do i find...
-horizontal asymptote, would it be 1 since x-1=0 -->1 ?? and would there only be one answer or two? since it's squared?
-domain, would it be (infinity, 1)hole(1, infinity) assuming the horiz. asy. =1??
-vertical asymptote, how would i find the degree for the numerator when there is no "x" attached to the "1"?
-range

explanations would be appreciated and thank you for your help.

2006-09-07 08:34:50 · 3 answers · asked by shih rips 6

2006-09-07 08:17:54 · 5 answers · asked by lm 2

use eight figure eight times means and use the addition ,substraction,multiplication,division and get the answer 1000 means (8,8,8,8,8,8,8,8,+,-,*,/).
Answer shoud be 1000

2006-09-07 07:54:42 · 5 answers · asked by rajesh 1

xsquared -28x-147=0
i can only come up with 3, 49, and 7,21 but that doesnt work can this even be factored?

2006-09-07 07:30:17 · 4 answers · asked by incubabe 6

2006-09-07 07:25:34 · 13 answers · asked by april g 1

2006-09-07 07:16:37 · 20 answers · asked by april g 1

Is this a true statement and why

2006-09-07 07:04:15 · 2 answers · asked by cream1112001 2

sum1 please explain them to me! like how do u get the factors or 981 without spending an hour and without using the net!

2006-09-07 06:38:10 · 7 answers · asked by N.E.R.D = No1 Ever Really Dies 1

A trip is made by ship and train. the ship averages 32 mph and the train 52 mph. The total trip of 600 miles takes 20 hours. how many hours are spent on the ship?

2006-09-07 06:27:10 · 8 answers · asked by dk 2

A watch goes slow by 5 minutes per hour . It was set right at 7:00 in the morning.What is the correct time,when it shows 12:00 noon the same day?

2006-09-07 06:24:30 · 7 answers · asked by Anonymous

Factor
2xsquared-316x-15840

2006-09-07 06:16:50 · 10 answers · asked by Fries 4

Please could somebody walk me through this example as I'm totally confused and talking to the book just doesn't help!?

Question

Use the method of CTS to write 2x^2 - 5x + 11 in the form a(x+b)^2 +c, where a, b and c are rational numbers.

Solution

First take out 2 as a factor.

2x^2 - 5x + 11 = 2[x^2 - 5/2x + 11/2]

Now complete the square on the contents of the square bracket,

= 2[(x - 5/4)^2 - 25/16 + 11/2]

= 2[(x - 5/4)^2 + 63/16]

= 2(x - 5/4)^2 + 63/8.

Any help greatly appreciated! :o)

2006-09-07 06:00:08 · 5 answers · asked by pixie.wings 1

The length of a side of the sqaure is ______ units.

2006-09-07 05:52:46 · 13 answers · asked by Fries 4

I'll let you choose:
a) Check to death a few numbers starting from 10 to the power of 30 to see if any are perfect.*
b) Write down numbers at random and find there nth terms.
c). Follow the lines round and round and round a parralellogram forever. Then realise it's not going to change anything so give up.
d) Count to more than 1,000,000.
e) Calculate sums to 50 decimal places without a calculator.

*If you think I don't know Euler's Formula I do and I believe that the formula may be wrong. There might be anumber missing.

2006-09-07 05:36:06 · 17 answers · asked by geode_diamond_soul 1

2006-09-07 05:25:22 · 3 answers · asked by chemical engineer 1

Hi,I'm looking for a site which contains interesting conceptions,questions,jokes... in field of mathematics. Do you know one?

2006-09-07 05:17:59 · 7 answers · asked by Sam 2

i want it to look like this problem with the 2 on the outside
2(2x-14)(x-3)

Factor 4xsquared-40x+36=0

2006-09-07 05:15:54 · 6 answers · asked by Fries 4