Science & Mathematics - 24 November 2007

factor completely

12x^3-3xy^2

2007-11-24 08:44:27 · 4 answers · asked by crazy4u 1 in Mathematics

2007-11-24 08:38:47 · 5 answers · asked by Hugh B 1 in Mathematics

I heard that it is possible to find out what have you been in your previous life. Is it true, and, if it is, can anybody tell me how?

2007-11-24 08:37:58 · 18 answers · asked by Anonymous in Paranormal Phenomena

I need to know the function (what does it do or what is it for) of a shark's liver, stomach, pancreas, and spleen. If you don't know, please don't respond or try to just guess I need to know an actual answer. Thanks!

2007-11-24 08:27:09 · 1 answers · asked by Anonymous in Biology

My professor gives bad notes.
Sample Questions:
- What type chlorophyll is seen in photosystem 1?
- What is the role of NADP in photosyestem 1?
- What is RDP?

There's lots more. I'd really, really appreciate it if anybody can help me. Thanks :)

2007-11-24 08:22:54 · 6 answers · asked by SaintsGurl25 1 in Biology

Spinel is a mineral that contains 37.9% aluminum, 17.1% magnesium, and 45.0% oxygen by mass.
Spinel has a density of 3.57 g/cm3, and the edge of the unit cell is 809 pm (1 pm = 10-12 m) in length.

How many of each type of atom are present in the unit cell?

2007-11-24 08:21:15 · 1 answers · asked by Nhat t 1 in Chemistry

Does the Earth's magnetic field deplete and not recuperate? If it only depletes, should we worry about it?

2007-11-24 08:20:05 · 4 answers · asked by Richie J 1 in Astronomy & Space

2007-11-24 08:18:20 · 9 answers · asked by Anonymous in Chemistry

2007-11-24 08:17:55 · 4 answers · asked by kayy♥ 3 in Mathematics

Im doing a project about fossils on the front range but am having a difficult time finding information
how can i narrow the topic down and what are some different kind of fossils that have been found

2007-11-24 08:17:07 · 4 answers · asked by smileprincess665 2 in Earth Sciences & Geology

You are given a small bar of an unknown metal X, whose density is found to be 10.5 g/cm3. An X-ray diffraction experiment measures the edge of its cubic-close-packing unit cell as 4.09 Å. Identify X.

2007-11-24 08:16:50 · 1 answers · asked by Nhat t 1 in Chemistry

can u give work out so i can see how you reach to answers

I dont want to give my fractions as want to work out myself

but have 3 different fractions.. and how do i use the answer after finding the ratio thus gained to divide??

hope this makes sense

2007-11-24 08:16:01 · 5 answers · asked by Anonymous in Mathematics

you know, a flame that is green?

2007-11-24 08:12:40 · 4 answers · asked by HotDockett 4 in Chemistry

what is the average force a mans arm can clamp an object?

2007-11-24 08:09:35 · 15 answers · asked by Gary88 1 in Zoology

1. Autosomal chromosomes

A. carry only a very few of the genes of a diploid organism.

B. are only found in plant cells.

C. do not have homologous mates.

D. are only found in gametes.

E. None of the above.

2007-11-24 08:07:16 · 3 answers · asked by stanibog 1 in Biology

A man 6ft tall walks at a rate of 5ft/s away from a light that is 15ft above the ground. When he is 10ft away from the base of the light,

a.) At what rate is the tip of his shadow moving?
b.) At what rate is the length of his shadow changing?

Thanks SO much.
Any Help would be great.
Thanks

2007-11-24 08:05:07 · 1 answers · asked by mastriannichris 1 in Physics

I mean people with scientific credentials.

2007-11-24 08:04:37 · 4 answers · asked by Anonymous in Physics

A sector with central angle X is cut from a circle of radius 4 inches, and the edges of the sector are brought together to form a cone. Find the magnitude of X such that the volume of the cone is a maximum.

Please help me and show all your work. I have no clue how to do this. Thank you! =)

2007-11-24 08:03:04 · 3 answers · asked by laweezer08 1 in Mathematics

2007-11-24 08:01:11 · 4 answers · asked by chiquitamonkeyyyyy 2 in Biology

:D

2007-11-24 08:00:38 · 2 answers · asked by iquechx_hize09 1 in Earth Sciences & Geology

factor and solve.

3x^2+x-10=0

2007-11-24 07:59:20 · 3 answers · asked by God Bless America!~ 4 in Mathematics

i just dont understand when it says 5 complete rungs 10 sugars 10 phosphates 10 nitrogen bases and bases attached to sugars and its says proper bonding for all base pairs on all 5 rungs???

can anyone explain or have a website that shows wat those are?? thnx

2007-11-24 07:59:16 · 1 answers · asked by Anonymous in Biology

factor completely.

5a^2-125

2007-11-24 07:58:32 · 5 answers · asked by God Bless America!~ 4 in Mathematics

2007-11-24 07:58:03 · 2 answers · asked by chiquitamonkeyyyyy 2 in Biology

Say our general eigenvector for the eigenpolynomial (x-2)(x-1)^4 is: (a+b, a-2b, ....)

We know
v1 = u1
and
v1 . v2 = 0

so I set up the equation
v1 = (a + b)
v2 = (a - 2b) - ((a-2b) (dotted into) (a+b) )/ ((a-2b) (dotted into) (a-2b) ) * (a-2b)

The v2 I got was (6ab^2 - 12b^3) / (a^2 + 4b^2)

multiply by the denominator i got
v2 = 6ab^2 - 12b^3

However, my v1 . v2 doesnt equal to zero.

Is this the right way to do it? or am i doing something wrong?

2007-11-24 07:57:42 · 1 answers · asked by elan_longterm_invest 2 in Mathematics

Factor:

ax-bx+5a-5b





thank you

2007-11-24 07:56:53 · 4 answers · asked by Anonymous in Mathematics

2007-11-24 07:49:00 · 1 answers · asked by amaris_is_cool 1 in Botany

2007-11-24 07:47:24 · 4 answers · asked by Anonymous in Physics

Okay, for a mini project I created a (0,5),(3,1), (8,9) triangle.

Now I have to find the linear equation that corresponds to each side. How do I go about finding this..I would appreciate it if someone can teach me in doing 1 example.

Thanks.

2007-11-24 07:41:54 · 4 answers · asked by Anonymous in Mathematics

what causes a plane to stall when going upwards, what was the highest a plane has ever gone (not including space shuttles).

2007-11-24 07:31:26 · 7 answers · asked by Anonymous in Engineering