Mathematics - 26 October 2007

Qns: 3/ x(3x - 1)^2
Ans: 3/x + 9/ (3x -1) + 9/ (3x -1)^2

can help to solve...plz help to write every step down to solve dis qns

2007-10-26 22:21:12 · 4 answers · asked by Anonymous

Find values of a and b so that the function r has a local minimum at (8,16)
Find the vertical asymptotes of r based on these values

2007-10-26 21:02:40 · 2 answers · asked by wildcat11 1

Consider the function f(x)=(4x^2-3x+4)^cos(x) Use logarithmic differentiation to find f'(1).....

2007-10-26 20:12:31 · 2 answers · asked by Ksyha 1

2007-10-26 20:01:59 · 2 answers · asked by Anonymous

hi.
you know when 2 lines are parallel,they have an equal distance in each part, from begining to end(this 'end' maybe be in the extreme!).so, why in the infinity(extreme) the distance decrease to Zero?!

2007-10-26 19:59:58 · 5 answers · asked by paymanvr 1

the equation of this tangent line can be written in the form y=mx+b

hint: you may use that: (x^2+y^2)^2=x^4+y^4+2x^2y^2 before differentiating.

2007-10-26 19:41:08 · 5 answers · asked by Hinal P 1

What is the prime factor of 28

2007-10-26 19:33:20 · 12 answers · asked by comet10nis_star 1

thanks in advance

2007-10-26 19:31:54 · 4 answers · asked by Prem 3

OK so if i had 450 hats , and i bured half of 3 quarters of it
how many have i burned ?
and
how many do i have left?

2007-10-26 18:53:37 · 11 answers · asked by Drag DarkFire 2

the answers are supposed to be 2,6

2007-10-26 18:47:30 · 2 answers · asked by Anonymous

1. There are 270 mumbers in a club. two-third are new members. 1 fifth of the new members are children. How many new members are children?

2. Shufen has 372 beads. 1 sixth are blue and the rest are red. How many more red beads are there than blue beads?

PlS SHOW STEps!.
Thx.

I am a 9 years old boy.

2007-10-26 18:30:00 · 13 answers · asked by Sam 3

5 cos^2 x+9 cos x= -4

round to the nearest tenth

2007-10-26 18:21:18 · 4 answers · asked by Epic M 1

well this is a algebra geomatry class question and I know that you first have to distribute....but then I get lost in the equation and then always get it wrong

2007-10-26 18:19:12 · 17 answers · asked by jess 1

2007-10-26 18:14:35 · 2 answers · asked by ali 1

2007-10-26 17:52:46 · 7 answers · asked by Anonymous

2007-10-26 17:51:03 · 15 answers · asked by Isaac 2

Two events, X and Y, are independent, such that P(Y)=0.2 and P(X) =0.4

2007-10-26 17:35:35 · 4 answers · asked by Anonymous

A math club of the local university consists of 28 members: 4 freshman,11 sophomores,7juniors, and 6 seniors. Three members are needed to be chosen to help out at the annual math convention. It was decided to draw names randomly.

2007-10-26 17:30:14 · 3 answers · asked by Anonymous

Okay, I think I am good with how to solve once I figure out where to move my like terms. For example

-4x+8<1/2x +3 (sorry I don't know how to make the fraction look right here).

So I move add 4x to both sides. By moving my "x" like terms to the right.

Now if I have 2x-7>-2/3x-2 , apparently I move my "x" like terms to the left by adding 2/3x to each side.

Here's my question, how do I know where to move my "x" like terms. Is there a standard? Sometimes to the right, sometimes to the left and I don't understand why. I am pretty confused.
Thanks.

2007-10-26 17:04:34 · 7 answers · asked by Heidi Ann 2

2007-10-26 16:36:17 · 4 answers · asked by yogiedebear 1

1. the sum of the measures of the interior angles of a polygon is five times the sum of the measures of its exterior angles, one angle at each vertex. How many sides does the polygon have?



2. the measure of each interior angle of a regular polygon is eleven times that of an exterior angle. How many sides does the polygon have?


i have tried very hard to do this but i can not figure it out. Can u please show me HOW u arived at the answer?

thank you very much in advance!

2007-10-26 16:33:13 · 5 answers · asked by Anonymous

The question goes as fallowing;

Model A 15min(Ea) Assemble 10(ea) Packing
Model B 10min (ea) assemble 12(ea) Packing
-------------------------------------------------------------------------'
Totals 1500 min 1320min

Profit Model A = 12$
Profit Model B = 10$

How many of each model should be produced for max profit?

What is the maximum profit?

(You may solve graphically or by simplex)

Thank you

2007-10-26 16:32:40 · 2 answers · asked by Anonymous

The answer seems to be n/[2^(n-1)]. Why?

2007-10-26 16:14:43 · 3 answers · asked by Goutam 3

A rectangular swimming pool is to be built with an area of 1250 square feet. The owner wants 5-foot wide decks along either side and 10-foot wide decks at the two ends. Find the dimensions of the smallest piece of property on which the pool can be built satisfying these conditions.

I have worked the problem out to be Length: 50 and Width: 25. Another answer I got was Length: (125)^1/2 and Width: 1250/(125)^1/2. Apparently these are the wrong answers though. I would really appreciate an explanation of how to do this problem. Thanks.

2007-10-26 16:12:37 · 2 answers · asked by Christian 1

d/dx(e^3/3x^2)

2007-10-26 16:02:54 · 3 answers · asked by lovebird 3

I can not seem to get the hang of these. They seem like they should be so easy.

2007-10-26 15:21:55 · 10 answers · asked by Nicole D 1

on my test, it's written as 34/53. how do i figure out my percentage for this test? did i pass or fail?

2007-10-26 15:01:51 · 14 answers · asked by Anonymous

My book says the answer to the problem below is -1, but I keep getting just 1. Can someone show me step by step how to do the problem below. If the answer is just 1..you can just say my book problem put the wrong answer on accident.

Find the limit as h approaches 0 for the function :
(1/(1+h)-1)/ h

2007-10-26 14:49:40 · 4 answers · asked by fiestyligerwoahman 2

I understand how to write the equations from the word problem, what I am having problems with is the step -by-step completion of the problem.
Example:

The combined cost of one advance ticket to a show and one same-day ticket was $65. It is known that 40 tickets were sold in advance and 35 the same day, for total receipts of $2425 . What was the price of each kind of ticket?

x+y=40
40x+35y=2425

Now how do I solve this step-by-step? Help please because I know there are rules, I just don't know what they are and guessing what x and y might be seems to take too long :o(. Thanks

2007-10-26 14:47:33 · 11 answers · asked by Heidi Ann 2

2007-10-26 14:31:48 · 2 answers · asked by S i r i 1