Mathematics - 4 November 2007

This was my attempt. I got stuck..

x + 1
____________________
x^3 + x^2 + x - 2
-x^3 - x
____________________
x^2 + 2x - 2
-x^2 + 1
______________
2x - 1


The correct answer should be x + ( (x-2)/(x^2 - 1) )

2007-11-04 05:48:36 · 2 answers · asked by kirsty1995 2

If the prob is find
f (x + (triangle symbol)x) - f(x) for
f(x) = 2x^2 + 3x + 1

Do I plug in the f(x) equation (2x^2 + 3x + 1) every time I see an 'x' in the equation f (x + (triangle symbol)x) - f(x)?

2007-11-04 05:43:57 · 5 answers · asked by i need help 2

possiable answers: 1. 1 2. 0 3. all real numbers 4. no solutions

2007-11-04 05:42:14 · 3 answers · asked by Anonymous

I need help with the above question:
A.16/%
b.8%
c.64%
d.6.4%
The answer i choose was c i just wanted to make sure its corrrect.

2007-11-04 05:40:07 · 9 answers · asked by marie 1

A quadratic function, p(x)= Ax^2+Bx+C, is called a quadratic approximation of the function F for values x values near a, provided that the following three conditions are met;

F(a)=p(a)
F prime(a)=p prime(a)
F double prime(a)=p double prime(a)

For values of x near a=0, find a quadratic polynomial,
p(x)= Ax^2+Bx+C, that is a quadratic approximation for the function F(x)= e^(-x^2).

2007-11-04 05:34:34 · 2 answers · asked by majoraganondorf 1

1. (3x^2 +2x-1) ^1/2 (square root, but i can't express it)
_________________
2^x +x

....i go to use the quotient rule but i'm not sure if you have to factor the top at some point or what happens with the variable in 2^x

2. (ax+b) (x^3 + 1/2x^2 +2logx) where a and b are constants.
....no idea on this one.

3. 1/ 3(2x-1)^2 +2^5x
....what happends with 2^5x, do you just find the derivative of the first part thenadd its derivative on to that?


Thank you, I appreciate this more than you'll ever know!!!

2007-11-04 05:30:52 · 3 answers · asked by Anonymous

2007-11-04 05:23:40 · 10 answers · asked by =] 5

h(x) = -8cscx + e^(x)cotx


rly need help

2007-11-04 05:23:30 · 2 answers · asked by Anonymous

log(base 6) (7 on top 6 on bottom)

2007-11-04 05:17:31 · 1 answers · asked by Anonymous

how do you determine complex solutions?

x^7 + 7x^6 + 13x^5 - 6x^3 + 18x^2 + 10x - 7 = 0

2007-11-04 05:16:32 · 4 answers · asked by ? 2

A rectangular swimming pool measuring 10 m by 4 m is surrounded by a deck of uniform width. The combined area of the deck and the pool is 135 m2(squared). What is the width of the deck?

2007-11-04 05:15:21 · 3 answers · asked by MathHelp 2

Can anyone help me with these??

1.) Let:

Sk = Summation from n=1 to k of n(0.1)^n

Find S3

2.) Determine the sum of the following series:

The Summation from n=1 to infinity of (-4^(n-1))/(8^n)

I have like 3 of each of these problems and I can't figure them out. My professor is horrible so please help!!

2007-11-04 05:11:10 · 1 answers · asked by Anonymous

2007-11-04 04:59:15 · 4 answers · asked by Anonymous

2007-11-04 04:53:57 · 2 answers · asked by Nicole D 1

Anyone help me with this problem? I got an answe but my web based hw tells me it's wrong and I'm stumped..

Scott and Amanda want to purchase a house. Suppose they invest 400 dollars per month into a mutual fund. How much will they have for a downpayment after 8 years if the per annum rate of return of the mutual fund is assumed to be 9.5 percent compounded monthly?

2007-11-04 04:51:25 · 2 answers · asked by Anonymous

The problem is:

solve A = B^2 - 4B for B.

I got B = the square root of (A+4B).
is that the simplest form? because it seemed just too easy to get that answer.

I figured I could also try to get B in simplest form by working with the 4B and not the B^2. When I did that I got
B = (B^2 - A) / 4

Which one is the right answer? Or are both wrong?
Thanks.

2007-11-04 04:48:17 · 5 answers · asked by i need help 2

2007-11-04 04:46:06 · 8 answers · asked by davydoohoo 1

x^3y^2=t^4/w

2007-11-04 04:43:19 · 4 answers · asked by Anonymous

PS- Be creative! Do NOT choose something simple such
as an addition sign (because “you’re always so positive.”)!

2007-11-04 04:37:04 · 12 answers · asked by jaya.mishra805 2

A rectangular storage container with an open top is to have a volume of 10 m3. The length of this base is twice the width. Material for the base costs $10 per square meter. Material for the sides costs $6 per square meter. Find the cost of materials for the cheapest such container.

Walk through please!

2007-11-04 04:18:53 · 3 answers · asked by Jess 2

i've already mentioned architecture.

2007-11-04 04:11:02 · 6 answers · asked by nycangel 3

Argh, I have a math test tomorrow on completeing the square, but I totally forgot how to do it. Can someone just show me an example? 10 points for best answer~ Please walk me through the steps.

Question:
x^2 - 8x +22 = 0

2007-11-04 03:57:38 · 6 answers · asked by xo_littledelights 2

2007-11-04 03:51:41 · 4 answers · asked by Anonymous

i dont know how to simplfy any of these:
sqrt(x^2 + 2)
sqrt(x^-2 + 2)
sqrt(1 - sqrt(1 - x))

2007-11-04 03:50:34 · 1 answers · asked by the_hockey_guy1990 1

Im Solving a word problem that only has the three sides of the triangle and Im using law of cosines to find the angle of one side, is it possible for me to use law of sines after that? or do I hafta continue using law of cosines?

Ex: Side a=153
Side b= 175
Side c= 201

I just found the measure of angle A through the law of cosines and it is: 47.405 degrees

So can i use law of sines? or do i continue using law of cosines?

2007-11-04 03:45:26 · 7 answers · asked by Anonymous

log (6 is the base) 12

i came up with 1.8573

2007-11-04 03:45:15 · 3 answers · asked by derrim2000 1

2007-11-04 03:45:03 · 7 answers · asked by xo_preciouspink_xo 1

Is the sum of interior angles of a non regular polygon 180x(n-2)?
Is the sum of exterior angles of a non regular polygon 360degrees?

thanks

2007-11-04 03:41:14 · 4 answers · asked by Anonymous

Prove that a group of order 12 must have an element of order 2

2007-11-04 03:38:58 · 1 answers · asked by Lole E 1

for any p>0, always exists d>0, such that |f(x)-f(1)|>=p whenever |x-1|>=d, this means:
(a) f(x) is continuous at x=1
(b) f(x) is discontinuous at x=1
(c) f(x) is unbounded
(d) lim f(x)=infinite as |x| goes to infinite
which choice is right?

2007-11-04 03:36:27 · 1 answers · asked by Anonymous