Science & Mathematics - 19 July 2007

please only math wiz only.

2007-07-19 04:03:08 · 12 answers · asked by Anonymous in Mathematics

2007-07-19 04:02:30 · 12 answers · asked by Raoof 2 in Astronomy & Space

The CO2 molecule is linear, the electronegativities of C and O are 2.5 and 3.5 respectiviely. Based on these values and on the consideration of molecular geometry. The C-O bond is ___ and the molecule is_____. Why?

a)polar,polar
b)non-polar, non-polar
c)polar,non-polar
d)non-polar,polar
e) none of these.

2007-07-19 04:02:19 · 4 answers · asked by Anonymous in Botany

2007-07-19 03:58:55 · 3 answers · asked by piano1 2 in Botany

1) Express f(x)=x²-4x+8 in the form (x-p)²+q. Deduce that
f(x)>0 for all x E IR.

2) Find the set of values of a where ax²+3x+4 is positive for all real values of x.

3) Show that the expression -x²+px-q is negative for all real values of x if q > 1/4 p²

2007-07-19 03:51:41 · 6 answers · asked by aMused 2 in Mathematics

thanks

2007-07-19 03:50:46 · 6 answers · asked by Peachie 2 in Astronomy & Space

The Senate will be voting, as early as today, on S.1105, the so-called "hate crimes" bill. Under S.1105, acts of crime committed against members of "certain protected classes" - including those who identify themselves by their "actual or perceived sexual orientation or gender identity" - would warrant more intense prosecution and greater penalties than the very same acts committed against heterosexuals. For those who think I am exaggerating here:

http://www.wnd.com/news/article.asp?ARTICLE_ID=29026

see how homosexuals murdered heterosexuals but were not charged with a hate crime. Had the roles been reversed - the victims homosexual and the perpetrators heterosexual - they could have been charged. Under S.1105, homosexuals are a "protected class" while heterosexuals are not.

All crimes are hateful--and personally I am all for locking them up --but the liberal courts let em go - especially when their in a 'protected class'.......do you support this lunacy? Does your rep?

2007-07-19 03:48:27 · 27 answers · asked by Cherie 6 in Parapsychology

Im in Scotland and its 3.50pm

2007-07-19 03:48:10 · 44 answers · asked by **** 7 in Geography

A dog and cat together weigh 27 Kg. If the dog's weight is an odd number, and if he weighs twice as much as she does, how much does each weigh?

2007-07-19 03:47:46 · 6 answers · asked by Blur 1 in Mathematics

Where should I start in the creation of myy own Robot.

2007-07-19 03:47:15 · 4 answers · asked by Lushes Touch 1 in Engineering

2007-07-19 03:41:46 · 14 answers · asked by Anonymous in Physics

please answer this question

2007-07-19 03:39:47 · 4 answers · asked by baba bala krishnan 1 in Physics

Hi there,

I've seen some companies selling lunar deeds. Ie. you can own 1 acre of the moon for a low price. Is this for real? Can a person really be entitled to an Acre of the moon? Who bought / owns the moon to begin with?

If it is for real, what are reputable companies to buy from?

thanks,

2007-07-19 03:36:49 · 6 answers · asked by Mark 1 in Astronomy & Space

obtain its velocity & accleration at t = 2 sec

2007-07-19 03:35:39 · 3 answers · asked by baba bala krishnan 1 in Physics

2007-07-19 03:31:20 · 11 answers · asked by analili 1 in Astronomy & Space

A distribution of IQ scores have a mean of 100 and standard deviation of 15. (Normal distribution)

A. What's the probability a student has IQ of 90 or less?
B. IQ of 120 or less?
C. IQ between 120 and 90?
D. IQ greater than 130?

Please show examples.

2007-07-19 03:29:51 · 3 answers · asked by Dr. J 1 in Mathematics

Lemme give an example. The points W(-2,7), J(3,5), and M(-6,8) are vertices of a triangle. Find the interior angles.

-> And my QUESTION is:
Right we have to try to plot the points first in the Cartesian plane, before we graph on how the triangle would look like? Eh... Our teacher insists that the positions of the points don't matter in arriving at the right answer, but it does matter... =D

2007-07-19 03:28:53 · 5 answers · asked by :) 3 in Mathematics

on the graph I have, there is a point on 3000 $'s and the year 1.
There is another point on 32000 $'s and the year 2. The last point is on 34000 $'s and the year 3.
Does this help?

2007-07-19 03:28:14 · 2 answers · asked by yuleydis77 1 in Mathematics

2007-07-19 03:28:12 · 5 answers · asked by jj_fans 1 in Mathematics

Can anyone identify these leaves? They are from seperate trees and i found them in Western Pa

http://i180.photobucket.com/albums/x213/Alicia4822/100_1744.jpg

2007-07-19 03:27:59 · 2 answers · asked by *lil' leasha lu* 2 in Botany

2007-07-19 03:27:37 · 5 answers · asked by invisiblemonkey 1 in Zoology

What is the impact of biodiversity on our environment? As species become more diverse, are effects taking a good or bad turn?

Is the impact different in different kinds of ecosystem? If yes, in what way?

How do you relate the effects of biodiversity in relation to evolution?

2007-07-19 03:27:09 · 8 answers · asked by chartreuse_sweet 2 in Zoology

Could you make diamonds out of anything if this it true.

2007-07-19 03:26:09 · 8 answers · asked by beyondthelimit 5 in Earth Sciences & Geology

2007-07-19 03:24:51 · 8 answers · asked by bobby k 1 in Zoology

Keep this in mind when you answer--don't just answer this question. I need for you to explain it to me in layman's terms so that I can use the formula to determine the rate of speed that something free falls to ground.

2007-07-19 03:23:33 · 9 answers · asked by Anonymous in Physics

2007-07-19 03:18:48 · 9 answers · asked by beyondthelimit 5 in Earth Sciences & Geology

Please,please!

2007-07-19 03:18:15 · 9 answers · asked by Anonymous in Mathematics

How many times can 1/3 be taken from 1.5

2007-07-19 03:16:16 · 13 answers · asked by Anonymous in Mathematics

7
Σ (i^2 + i)
i=3

i would not know how to find the answer unless i wrote it all out. (3^2 + 3) + (4^2 + 4) + .... (7^2 + 4) = sum

what I do know that if the problem were i=1 instead of 3..I would just use the formulas for i^2 and i

n(n+1)(2n+1)/6 and n(n+1)/3

would i still somehow be able to use these formulas to answer this problem?

2007-07-19 03:12:10 · 4 answers · asked by sky l 1 in Mathematics

I want to write a program by computer to simplyfie numeratour and denamerator which is key in by user for example 40/8 how can I delighten computer that simplyfy 12/3 or any other number
40/5,60/3 etc I need a formula for doing this THX

2007-07-19 03:10:18 · 8 answers · asked by Anonymous in Mathematics