Mathematics - 17 December 2007

How good are you in problem solving...
-There is a bus with 7 Girls
-Each girl carries 7 bags
-Inside each bag there are 7 cats
-Every cat has 7 kittens
-All cats have 4 legs each
Question: How many legs are in the bus?

2007-12-17 23:30:18 · 10 answers · asked by Mr.Karachi 5

find f1(x)

1. f(x) = (x^3 -2x+1)^4
2. f(x) = x^2 (x + 1)^-1
3. f(x) = (x^2 - 4) ^-1/2
4. f(x) = x+1 / x^2 - 4
5. f(x) = (x+1 / x-1)
6. f(x) = x sqrt(1-x^3)

2007-12-17 23:03:59 · 4 answers · asked by Anonymous

Hey everyone. I'm trying to select a class for my next term and wondering which class I should take between the two. I'm very logical and I love algebra as well as geometry. I've asked my professors what class I should take, and so far I've gotten mixed answers. I know that if I wanted to take some time off from algebra, I would head off into Trig; however, if I want to stay on with some more advance algebra, I'll pick Pre-Cal. I have had experience with both classes inside high school, yet I'm still having a tough time trying to pick which one to take. Greatly appreciated!

2007-12-17 23:00:06 · 2 answers · asked by mekidi_cloud 1

To start with, without using math jargon, what is an asymptote?

Find the vertical, horizontal and oblique asymptote, IF ANY, of each rational function below.

(1) R(x) = (3x + 5)/(x - 6)

(2) F(x) = (-2x^2 + 1)/(2x^3 + 4x^2)

What is the difference between a vertical, horizontal and oblique asymptote, in simple words?

2007-12-17 22:49:59 · 6 answers · asked by journey 1

I need to know how to do it for both clockwise and counterclockwise.

2007-12-17 22:09:54 · 4 answers · asked by blondebarbie55 1

I am a high schooler in a high school math class, and i know that this stuff is way over my head, but i have to do a small five-minute presentation in which i simply give a quick introduction to topology. I am not getting detailed at all. I know about point-set topology, but i would like to be able to talk briefly about algebraic topology. I will show the mobius strip tricks. That's interesting, but i want to know some real-life things that topology has been used to help with.

2007-12-17 21:53:48 · 5 answers · asked by Anonymous

An area is difined by curve y = sin(2x) and x-axel. Calculate size of the area between 0 and 3pi/4

2007-12-17 21:00:27 · 4 answers · asked by ? 1

anyone know how to solve this? the answer is 8

Ln(2x+5)-Ln3=Ln(x-1)

2007-12-17 20:12:06 · 5 answers · asked by Molina88 2

The following must be resolved first:

There are 7 Girls in a Bus.
Each Girl has 7 Bags.
In each Bag there are 7 big cats.
Each Big cat has 7 small cats.
Each Cat has four legs.

Question: How many Legs are there in the Bus??

2007-12-17 20:10:10 · 37 answers · asked by Anonymous

How do you solve this problem???!!

In January 2005, the population of california was 36.8 million and growing at an annual rate of 1.3%. Assume the growth continuous at the same rate. By how much will the population increase between 2005 and 2030?

2007-12-17 19:14:16 · 3 answers · asked by SK 1

i know the answer but i just want to make easy questions to make people answer it alot so

2007-12-17 19:11:29 · 9 answers · asked by Anonymous

what all careers dont use algebra?

2007-12-17 19:08:55 · 4 answers · asked by jenny 5

If we have these numbers 3,5,11,29,83...waht is the next number ...? it is 245 ... it is x*3-4
the question is in Mathematics what is the name of each one of these :
3,5,11,29,83
245
x*3-4
and is there a way to find the next number of series of numbers automatically?

2007-12-17 18:54:47 · 2 answers · asked by Anonymous

What is:

111,111,111 multiplied by 111,111,111 = ?

2007-12-17 18:38:23 · 5 answers · asked by RedMistPete 4

Find the sum of an arithmetic series in which a1=12, a4=-6, and n=10.

2007-12-17 18:33:38 · 3 answers · asked by rbrulesamanda 2

I have to take the derivative twice. I got the 1st part which is this:

x/(x^2+1)^1/2

Now I have to take the derivative of that? How? I know the answer but dont know how to get it.

ALSO

The 1st AND 2nd derivative of this:

√r + 3√r

That one reads:

the square root of r plus the CUBE root of r. not the square root

Okay and this one I have no idea how to do, i did chain rule my answer is always wrong!!

y= (x+2)^8 (x+3)^6


thanks

Here is the answer to the 1st one:

1) 1/(x^2+1)^3/2

2007-12-17 18:29:55 · 3 answers · asked by jyj 2

The number of students infected with the flu on a college campus after t days is modeled by the function P(t)= 200/1 + 39e^-0.3t

When will the number of infected students be100?

A) About 16 days
B) About 12 days
C) About 14 days
D) About 8 days

2007-12-17 18:15:35 · 2 answers · asked by naughtystudent1985 1

Hi, I'm trying to find the volume of the solid generated by revolving the area bound between the curves y= x^2, x=0, and y = x+2 (in the first quadrant only) about the line
x= -1.

I have difficulty determining the radius when the axis of rotation is something other than the x- or y-axis - it always flips me out.

Q: What would be the radius for this problem & how did you determine it?

I decided to use the Shell method
(V = 2(pi)rhw) for this problem and I THINK the height is (x+2 - x^2) with bounds from 0 to -1.

Please let me know how radius was determined & if I'm basically on the right track! Thanks!!!! :>)

2007-12-17 17:57:56 · 2 answers · asked by LLH 2

$1400 at 6% compounded quarterly

A) 9.31 years
B) 11.64 years
C) 23.28 years
D) 17.46 years

2007-12-17 17:47:17 · 5 answers · asked by psychologygal1986 1

refer to:
http://img444.imageshack.us/my.php?image=20610535jc7.jpg

2007-12-17 17:38:32 · 5 answers · asked by Anonymous

How long must $6,000 be in a bank at 7% compounded annually to become $11,802.91?

A) 9 years
B) 12 years
C) 11 years
D) 10 years

2007-12-17 17:28:55 · 5 answers · asked by psychologygal1986 1

please tell me formula also

2007-12-17 17:15:47 · 12 answers · asked by Palaniappan 1

Let f(t) be a continuous function and
f(t) = 0 for almost all t ∈ [0, 1].

Show that f(t) = 0 for all t ∈ [0, 1].

2007-12-17 17:15:12 · 5 answers · asked by N 1

how do you do this??
(i cant type fractions....)
solve for n
5n+1 over 8 = 1 over 2

2007-12-17 17:05:01 · 7 answers · asked by haybish2012 3

2007-12-17 17:00:25 · 8 answers · asked by venom7672002 1

An open box is formed from a rectangular sheet of cardboard with dimensions 80 cm by 60 cm, by cutting squares with side length x out of each corner and then folding up the extending pieces and fastening them to form the box. Express the volume of the box in terms of x.

2007-12-17 16:53:59 · 3 answers · asked by Anonymous

Write expression in the form bi, where be is a real number

2√-162

A) -9i√2
B)-9√2
C) 9i√2
D) 9√2

2007-12-17 16:38:15 · 7 answers · asked by Ambiguous 1

how on earth would i solve the area of an octagon if each side had a length of five?

pretty please show work with formulas or whatever.

thank you so much this means a lot!

2007-12-17 16:36:35 · 6 answers · asked by Answer 2

frederiqu is two years older than her brother. twelve years ago she was twice as old as he was. how old are they now.

2007-12-17 16:10:58 · 6 answers · asked by chiyoung h 1

it can be

-5
or
5
or
10
or
none of these


thank you!!

2007-12-17 16:02:09 · 11 answers · asked by Jen C 1