Science & Mathematics - 30 November 2007

Well the titile says it all lol

2007-11-30 12:31:48 · 12 answers · asked by Anonymous in Zoology

2007-11-30 12:31:44 · 3 answers · asked by Anonymous in Biology

I thought it was the pancreas but my anatomy book says the liver?

2007-11-30 12:30:44 · 9 answers · asked by S i r i 1 in Medicine

Two moles of an ideal gas initially at 224K and 0.55 atm are compressed to 1.55 atm. I have to find the final volume of the gas so first I found initial volume 67.72 then I found the final volume which was 0.024 but it's not right and I don't know what I'm doing wrong.

2007-11-30 12:30:41 · 2 answers · asked by Shane 1 in Chemistry

2007-11-30 12:30:16 · 5 answers · asked by Anonymous in Zoology

Find a value of x satisfying the equation

5[sqrt(1-x) + sqrt(1+x)] = 6x + 8[sqrt(1 - (x^2))].

2007-11-30 12:28:47 · 7 answers · asked by absird 5 in Mathematics

As an incentive to get his son to do his arithmatic homework, a father offered him 10 cents for every problem done correctly but fined him 6 cents for every problem done incorrectly. When the father corrected the 24 problems, neither owed any money to the other. How many problems did the boy solve correctly?

2007-11-30 12:27:10 · 18 answers · asked by Off the Key of Reason 3 in Mathematics

2007-11-30 12:26:15 · 3 answers · asked by Anonymous in Mathematics

How could you separate a mixture of sugar and white sand? What time of material do you use to to separate it?

Thanks for all the answers! You all are so nice to help people out like this. :]

2007-11-30 12:23:26 · 4 answers · asked by Starry-Ness 2 in Chemistry

help i dont get why melting and freezing points are the same

2007-11-30 12:23:25 · 1 answers · asked by Anonymous in Earth Sciences & Geology

Explain how the use of Descartes' Rule of Signs can simplify the process of finding the zeros of the following polynomial:

P(x) = 12x^4 + x^3 + 4x^2 + 7x + 8

Using the theorems and techniques of this section, find the zeros of the following polynomial:

P(x) = x^3 - 4x^2 + x + 6

2007-11-30 12:22:34 · 4 answers · asked by Zack A 1 in Mathematics

Where and what is it? Who discovered it?

2007-11-30 12:21:31 · 2 answers · asked by FAICAL1982 3 in Geography

and how come they sell them on Ebay? Should I buy one?

2007-11-30 12:19:00 · 9 answers · asked by Asker_765 3 in Paranormal Phenomena

a department store sells jewellery and cosmetics. On a certain day the total number of persons buying jewellery or cosmetics or both was 400. given that 250 persons bought jewellery, 2x persons bought cosmetics only, x persons bought both jewellery and cosmetics.
(a) write an expression in terms of x, to represent the total number of person buying jewlery or cosmetics or both

2007-11-30 12:18:37 · 2 answers · asked by baby 1 in Mathematics

2007-11-30 12:17:08 · 2 answers · asked by Anonymous in Earth Sciences & Geology

The thing is that I do not think would form a triangle.But the sides are in inches anyways.

2007-11-30 12:16:21 · 7 answers · asked by Count Bleck 1 in Mathematics

(A) x=25530, y=29464 (B) x=37615, y=26855 (C) x=15123, y=32477; (D) x=28326, y =28614 (E) x=22536, y=27462

(Note: No calculator is allowed for this question)

Tks a lot

2007-11-30 12:16:19 · 2 answers · asked by Answer Seeker 1 in Mathematics

thats a stupid theory. oh yea and remember when the greatest scientist believed that earth was flat? lol

2007-11-30 12:15:20 · 12 answers · asked by Anonymous in Biology

clues:
1. Determine what number T must represent.
2. Determine H by looking only at the addition potion.
3. Determine R by looking only at the addition portion.
4. Determine W by looking only at the addition portion.
5. Solve problem by trial and error.
6. straw × o= warts(straw flipped backwards.

2007-11-30 12:14:37 · 5 answers · asked by spirina 3 in Mathematics

what is tin's freezing point, and its physical state at room tempreature

2007-11-30 12:11:25 · 3 answers · asked by Anonymous in Chemistry

A block of mass 3.7 kg is resting on a horizontal surface with a static coefficient of friction, µ=1.3. A spring with a constant 470 N/m is attached to the block and someone pulls on the other end of the spring. By how much does the spring extend before the block begins to move? g=9.81m/s2.

2007-11-30 12:10:30 · 2 answers · asked by A Saucerful of Secrets 2 in Physics

In the figure below, points C, D, and F are collinear, ACF and CDE are equilateral triangles, and b + d = 90 degrees. Use a two column proof to prove that ABC is a right triangle.



YAH! I am so confused and I look at how to do it and I still dont get it...

2007-11-30 12:08:26 · 3 answers · asked by Anonymous in Mathematics

I've heard it referred to that way, yet it doesn't seem quite right. What do you think?

2007-11-30 12:04:46 · 3 answers · asked by cap3382 4 in Geography

A cult of believers think it was a UFO/extraterrestial and not a weather balloon as the government cited...What's your thoughts on this?

2007-11-30 12:03:55 · 15 answers · asked by jesshispet 3 in Astronomy & Space

i have to do this problem and i cant figure out the answer. i can use either substitution or elimination plz help.

2y = -4x
4x + 2y = -11

2007-11-30 12:01:08 · 12 answers · asked by tinkerbell 1 in Mathematics

2007-11-30 11:59:12 · 6 answers · asked by harvey M 1 in Weather

I got werd question when your tutuor ask you a question about chemistry and you cant answer is because I just suck at chemistry because I need to learn more. Its like i cant think the chemistry thru? Like the mind set is not there to know the in and outs of chemistry?

2007-11-30 11:58:21 · 3 answers · asked by Steven V 2 in Chemistry

From mining silica (feldspar) what process and equipment is used to remove or reduce the 7 - 2 % iron oxide to acceptable level of 0.25 % or lower?

2007-11-30 11:56:41 · 1 answers · asked by Manuel 1 in Engineering

find the shortest distance form the origin to the surface 3x^2+6y^2-4z^2 = 54

what I did is I found the distance d from some point on the surface (x,y,z) to the origin would be d = sqrt(x^2+y^2+z^2) and that this could be stated as a function of f(x,y,z) as:

f(x,y,z) = x^2+y^2+z^2 and I must find the min of this functoin subject ot the constraint 3x^2+6y^2-4z^2 = 54, but the method of Lagrange multipliers does not work here, why???

2007-11-30 11:56:12 · 3 answers · asked by Anonymous in Mathematics

A wire 5 ft long is to be cut into two pieces. One piece is to be bent into the shape of a circle and the other into the shape of a square. Where should the wire be cut so that the sum of the areas of the circle and square is
(a) a maximum
(b) a minimum

2007-11-30 11:55:12 · 6 answers · asked by deadman 2 in Mathematics