Science & Mathematics - 30 December 2007

(5x + 4)(9x + 9)

2007-12-30 14:42:12 · 10 answers · asked by 11:11 3 in Mathematics

because the Y chromosome is getting shorter and shorter? Or will the male lineage is going to be extinct at all?

2007-12-30 14:40:38 · 3 answers · asked by Travis 4 in Biology

i tried to understand how a diode works but i just cant seem to grasp the information maybe if you could make it easier to understand i could get it plz help me.

2007-12-30 14:33:10 · 4 answers · asked by funnypun 2 in Engineering

For years I believed, then gave up. Not enough 'hard data'.

2007-12-30 14:31:27 · 12 answers · asked by Thomas E 7 in Paranormal Phenomena

2007-12-30 14:24:41 · 5 answers · asked by ♥Jazzi Pooh♥™ 1 in Astronomy & Space

Using principles of gravitational potential energy, how can I construct a tabletop trebuchet model that is able to project a golf ball a distance of at least 6 ft. The maximum dimensions are 24 x 24 x 24 [inches].

2007-12-30 14:23:03 · 2 answers · asked by cassie K 1 in Physics

2007-12-30 14:19:20 · 8 answers · asked by 0hSnap3 0 2 in Physics

2007-12-30 14:15:41 · 14 answers · asked by sharday b 1 in Mathematics

how would you explain the following so that a 5th grader can understand it?

1) The hardy-weinberg theorem; its criteria and a simple application

2) Factors that can cause evolution in a "stable" population

3) Microevolution: Genetic drift and natural selection

4) Darwinian Fitness and Relative Fitness

5) Selection: directional, diversifying, stabilizing, and natural

i know this is a long question, and i greatly appreciate anything you can give me. thank you

2007-12-30 14:11:12 · 2 answers · asked by Anonymous in Biology

my sister thinks i dont know how to solve it

2007-12-30 14:11:05 · 12 answers · asked by Anonymous in Mathematics

2007-12-30 14:10:47 · 9 answers · asked by Kelly S 1 in Mathematics

secant theta minus sintheta times tan theta

2007-12-30 14:09:55 · 5 answers · asked by Kelly S 1 in Mathematics

A few ways that they are different would be great. Thanks!

2007-12-30 14:09:24 · 7 answers · asked by Anonymous in Biology

2007-12-30 14:08:11 · 1 answers · asked by Kelly S 1 in Mathematics

2007-12-30 14:07:16 · 9 answers · asked by Kelly S 1 in Mathematics

I brought my son to hospital for treating a broken foot tonight, and my wife was with me as well. We were driving on RT.1 through westerly, RI and wife pointed out, up in the sky, " what the hell is that " I glanced up through windshield, spotted three bright white light's from what i could see, and a large wide shaped ray of light in the front, " I think " and Looked back up about 5 seconds later, POOF, it was gone just like that...the whole sky was black, this happened about 10pm, could it have been a UFO, I don't think a plane would fly through when were in a severe weather alert right now!!! with snow, rain, etc.

2007-12-30 14:07:03 · 11 answers · asked by Todd G 1 in Astronomy & Space

2007-12-30 14:05:26 · 2 answers · asked by s8888 1 in Physics

Rubidium???
I know that RUbidum has a total of 48 neutrons
..the isotope has 50 neutrons
...the ion has 48 neutrons

WHy does the number of neutrons change between each?

2007-12-30 14:04:49 · 4 answers · asked by Me<3JB 2 in Other - Science

the dimensions of a brick in inches are 2 by 4 by 8. How many such bricks are needed to have a total volume of exactly 1 cubic foot ?

hey heyy . im not asking for the answer maybe if someone could just show me how to start solving this question
thanks
=]

2007-12-30 14:04:46 · 6 answers · asked by helppmee =] 2 in Mathematics

Hi friends,
I felt something that we could acquire Extra Sensory Perception artificially. How is that possible? I would try in my house so please say the whole details if you can.
Thanks
Aishu.

2007-12-30 14:02:21 · 15 answers · asked by Anonymous in Parapsychology

2007-12-30 13:54:39 · 2 answers · asked by Joseph C 2 in Mathematics

Consider the curve given by the equation y^3-3xy=2
a)find dy/dx
b)write an equation for the line tangent to the curve at the point (1,2)
c)find d^2y/dx^2 at the point (1,2)

2007-12-30 13:54:23 · 4 answers · asked by affy 2 in Mathematics

factor trinomial using the form- ax2 + bx + c

5xsquared - 16x + 12

2007-12-30 13:53:11 · 5 answers · asked by 11:11 3 in Mathematics

2007-12-30 13:51:09 · 11 answers · asked by rosa c 1 in Weather

How many centimeters would i be if im 5'7

2007-12-30 13:50:38 · 7 answers · asked by Brittany 3 in Mathematics

2007-12-30 13:45:26 · 3 answers · asked by Nialler's wifeey 2 in Earth Sciences & Geology

2007-12-30 13:45:19 · 9 answers · asked by Zefram 2 in Weather

Arccsc (-2)

Arccsc (1.607)

Arccot (-0.555)

2007-12-30 13:39:17 · 4 answers · asked by Anonymous in Mathematics

2007-12-30 13:35:33 · 4 answers · asked by hectoroquendo717 1 in Geography

2007-12-30 13:34:38 · 2 answers · asked by Gopi K 2 in Zoology