Mathematics - 26 July 2007

Each person has a Corbon Foot Print, which is a measure of the resources (natural) he has been consuming for all his activities, direct or indirect.

2007-07-26 23:36:55 · 3 answers · asked by jgm 1

1. The temperature of an object in Celsius and Fahrenheit scales are related by a linear function.Water boils at 100 degrees celsius or 212 degrees fahrenheit, and freezes at 0 degree celsius or 32 degrees fahrenheit.
a. Write the function expressing F in terms of C.
b.Transform the function so that C is expressed in terms of F..
c. Normal body temperature is 98.6 degrees fahrenheit.What celsius temperature is this?
d. If the weather is forecast at 40 degrees celsius today,will it be cold, hot or just warm? Explain...
e. Sketch the graph of F as a function of C.
pls with complete solution and explain the answer........

2007-07-26 22:30:43 · 5 answers · asked by Anonymous

2007-07-26 22:28:13 · 7 answers · asked by .brynbach 2

1. Alina read 56 pages in 3 hours.At the same rate, find the number of hours it will take her to read the remaining 140 pages.
pls with complete solution........

2007-07-26 22:01:11 · 4 answers · asked by Anonymous

Hello, I'm kind of stuck with these two.

[sin^2(x)-2sin(x)+1] / [sin(x)-1] = sin(x)-1

The other:

[ sin(x) / 1-cos(x) ] - [ sin(x) / 1+cos(x) ] = 2cot(x)

If you could go step by step so I can understand where you're coming from, that would be much apperciated.

Many thanks.

2007-07-26 21:59:29 · 5 answers · asked by Inquisitive Mind 4

A Newspaper resporter described the old rules for the telephone area codes by writing

"possible area codes with 1 or 0 in the second digit (Excluded: codes ending in 00 or 11, for toll-free calls, emergency services, and other special uses.)"
Codes beginning with 0 or 1 should also be excluded.

How many different area codes were possible under these old rules?

2007-07-26 21:00:19 · 2 answers · asked by 56984 2

The teacher asks each one of the student in a class to write a 2-digit number on the board. The teacher claims that at least three numbers whose digits have the same sum. How many students has there to be in the class in order for the teacher to be correct?

2007-07-26 21:00:08 · 14 answers · asked by Venezia 2

I confused with this equation. I cannot solve this problem even using calculator. Plz show me steps to solve with calc.

Q=20K^0.1L^0.9 where K=20 and L=50

2007-07-26 20:38:14 · 5 answers · asked by chirag p 1

.

2007-07-26 20:31:29 · 5 answers · asked by iwan s 1

how many different lucky numbers are there?

2007-07-26 20:03:39 · 4 answers · asked by Answer-er-er 3

2007-07-26 19:30:58 · 12 answers · asked by blehbleh 1

2007-07-26 19:25:08 · 11 answers · asked by Answer-er-er 3

here i have uploaded a table

http://img512.imageshack.us/my.php?image=scan0002pl2.jpg

i dont understand the meaning of the problem statement

"Each university is represented by three of its best colleges".

what it means in this context ?

does it mean universirt1 has 3 colleges . university2 and others also have 3 collges ....then there should have 3x5 = 15 colleges !!

I think i am understanding it wrongly.

someone please help me to understand the meaning of that problem-statement

2007-07-26 19:12:40 · 4 answers · asked by calculus 1

age be 3/5 of her uncle's ?

i-Maths :-

2) In 6 years' time, Alvin will be 30 years old and his younger brother's age will be 1/3 of his. In how many years' time will his younger brother's age be 3/5 of his ?

2007-07-26 19:02:25 · 6 answers · asked by Lim S 3

1. How must a right circular cone be cut in such a way as to reveal a parabola?

2. What will you get if a right circular cone is cut parallel with the axis of symmetry?

2007-07-26 18:44:02 · 2 answers · asked by Anonymous

Please help! thanks!

2007-07-26 18:34:49 · 12 answers · asked by Anonymous

In a certain colony of bacteria, each bascillus divides into 2 every hour. If at the end of the first hour there are 2, how many will there be after 24 hours?

What kind of progression is applicable in this problem?

2007-07-26 18:21:09 · 5 answers · asked by Anonymous

2007-07-26 18:17:36 · 4 answers · asked by SHAH P 1

the problem is:

y''' - 6y'' + 11y' - 6y = e^t, y = y(t), y'=dy/dt

I don't know how to use annihilators method. Can you show how to do the problem?

2007-07-26 18:06:22 · 3 answers · asked by gibsongtar101 3

5
18 3/4
9
12

2007-07-26 18:02:02 · 20 answers · asked by AnswerMeThis 1

or how ever it is written.

2007-07-26 18:00:02 · 7 answers · asked by AnswerMeThis 1

I have not had math in a long time...and I forget how to find the mean and the median of #.

I dont remember if I have ever did this so if some one can plzz explain it to me step by step...

plzz and thanx <3

2007-07-26 17:59:46 · 11 answers · asked by Anonymous

3:3, 4:1

8:2; 16:4

1:5; 4:1.5

1:5; 15:3

2007-07-26 17:55:42 · 2 answers · asked by AnswerMeThis 1

I have had Algebra 1, Alg. 2, geometry, and college algebra in high school with an "A" in all classes; yet I am not sure if I have the background to go straight to calculus without trigonometry. Will it be too much with calculus and chemistry for my freshman year?

2007-07-26 17:53:18 · 6 answers · asked by Anonymous

every 6 minutes the water drips 27 times. Find the ratio of drips to minutes to simply form
homework problem...cant solve this one lol

2007-07-26 17:52:42 · 4 answers · asked by AnswerMeThis 1

find b so that the eccentricity is .75

2007-07-26 17:38:09 · 4 answers · asked by bilinmz 1

Consider the function f(t)=8sec^2(t)–10t^2. Let F(t) be the antiderivative of f(t) with F(0)=0.
Then F(3)= ???

Thanks for any help/suggestions/hints/solutions (along with explainations of how you reached that solution)...
I appreciate it!

2007-07-26 17:36:31 · 3 answers · asked by Anonymous

.

2007-07-26 17:12:35 · 1 answers · asked by iwan s 1

when we write 2x+4 as 2(x+2), we say that we have_______ 2x+4

2007-07-26 17:09:54 · 13 answers · asked by Pinky 1

yes or no

2007-07-26 17:03:29 · 4 answers · asked by Robo 1