Science & Mathematics - 27 August 2007

2007-08-27 06:36:03 · 3 answers · asked by Hosay 1 in Zoology

Can you work this out please and show how you do it so I can learn? My professor dosn't give us any examples. Thanks!
Find the slope.
-3x + 2y=6

2007-08-27 06:30:33 · 6 answers · asked by Chris 3 in Mathematics

... about how the universe was formed? When you look at the hypotheses - i.e. dark matter, dark energy, the Higgs field - don't you sometimes feel like scientists are trying to make it seem as if they "know" everything about the universe? When, a discovery like this http://www.space.com/scienceastronomy/070823_huge_hole.html comes along, don't you wonder if maybe they don't know as much as they claim to? I am totally for science, and I think it is one of the greatest endeavors of humankind. I just feel somtimes like there is little room for new theories or thoughts about some things - like the formation of the universe - because scientists present ideas like The Big Bang as facts - not hypotheses, and I think this sometimes stifles new discoveries. What are your thoughts on this?

2007-08-27 06:29:01 · 11 answers · asked by Anonymous in Astronomy & Space

at what time? i live in illinois.....and is it something ur allowed to look at?

2007-08-27 06:28:14 · 10 answers · asked by Britney 2 in Astronomy & Space

In highschool, I've taken Algebra, Algebra 2, Advanced Mathematics, Analytical Geometry and College Algebra. Now I'm taking Precalculus at a community college, and I've found that this and every other math I've taken above are the same (with the exception of increased difficulty as I progressed from one to the next). Am I delusional, or are they really just the same math with different names?

2007-08-27 06:23:07 · 3 answers · asked by Joe Coolguy 3 in Mathematics

the equation is 2/x+3/y and the directions say "please perform the indicated operations. leave all answers with positive exponents.

what am i supposed to do?

2007-08-27 06:20:41 · 4 answers · asked by Anonymous in Mathematics

Here is the exact question...

Represent this situation on graph paper. You're behind a truck that is 30 feet in length, and 14 feet tall. A traffic signal is directly above the front of the truck, 18 feet above the ground. How far behind the truck are you if you can just see the signal, if your eye is 4 feet above the ground?

anybody have any ideas on how to solve this??

2007-08-27 06:13:25 · 10 answers · asked by Anonymous in Mathematics

a2 - a = -a ( )

2007-08-27 06:05:52 · 6 answers · asked by dianajiminez 1 in Mathematics

it is a mix of BASO4 AND ZnS

2007-08-27 06:00:39 · 8 answers · asked by Anonymous in Chemistry

2007-08-27 05:59:29 · 11 answers · asked by Anonymous in Physics

:) kay thanks.
so i've got this test but i dont really get it..please help. (the stuff doesn't work when i type it sideways.)

*** each STAR (*) represents squared.

8a*+2a-15
_________
4a*-4a-15

it says i need to simplify that. i dont get it though.

oo and also simplifying the following rational expressions

x*-2x
_____ X
x*-x-2


x*-1
____
x*-x


....



2
___ +
x-4


5
____
x*-16

and...

2x
____ -
2x+1

4x
____ -
2x+3


5
________
4x*+8x+3

I can understand that it is hard to read vertically but...please try? thanks.

2007-08-27 05:54:11 · 4 answers · asked by TT 4 in Mathematics

1)What does it mean when chemists say that a reactant is reduced?

2)what does it mean when chemists say that a reactant is a reducing agent?

3)Is francuim likely to be reduce in a chem. reaction?would it be easy or difficult to separate francium ores?Explain.

Oxidation or Reduction?
1)Na--> Na+ +e-
2)Cl + e- --> Cl-

2007-08-27 05:51:53 · 5 answers · asked by Anonymous in Chemistry

i feel dumb for gettin stuck on this..please solve..dont even know where to start..

2007-08-27 05:50:28 · 4 answers · asked by arod_69 1 in Mathematics

2007-08-27 05:46:55 · 4 answers · asked by baby166_99 2 in Mathematics

I have this one

log(base b) 27 = 3

2007-08-27 05:46:50 · 2 answers · asked by logivan_net 3 in Mathematics

2007-08-27 05:45:55 · 3 answers · asked by baby166_99 2 in Mathematics

they're so hot that i can feel it through the clothes i wear.

2007-08-27 05:45:06 · 1 answers · asked by Anonymous in Biology

Why is 1 + 1 + 1 = 3??

my teacher explains this as 1+1+1 = 2^0+2^1,

why is this like this??

why isn't it 2^1+2^1+2^2??

2007-08-27 05:35:11 · 7 answers · asked by ? 1 in Mathematics

2007-08-27 05:26:13 · 2 answers · asked by a a 1 in Engineering

2007-08-27 05:23:36 · 3 answers · asked by its me 1 in Biology

2007-08-27 05:23:12 · 8 answers · asked by Anonymous in Physics

2007-08-27 05:20:29 · 2 answers · asked by Susas 6 in Botany

will plants grow better if watered with milk or water?

if so, where can i find information that can be used for my research paper?

2007-08-27 05:18:31 · 2 answers · asked by Anonymous in Botany

When we believe in the good side of the power that rules the earth (GOD), why can't we beleive in the bad side of it, or what reason stops us from beleiving in it? Is there life after death.

2007-08-27 05:12:47 · 27 answers · asked by Popular 3 in Paranormal Phenomena

For those of you who read my previous question, please forgive my use of "square yard" rather than "cubic yard"...it's early. My question regarding how much water is in an average cumulus nimbus cloud assumes that most cumulus nimbus clouds will have a similar moisture density because they have similar visual characteristic. I realize that size of clouds vary. But I am interested in how much water is in a given area of a cumulus nimbus cloud and how that is measured. If it has not ever been, or can not be measured, why not?

2007-08-27 05:12:23 · 1 answers · asked by Anonymous in Weather

Whoever gives me the correct answer will get 10 points.

2007-08-27 05:10:20 · 3 answers · asked by Anonymous in Astronomy & Space

If disposable nappies have only been around for 20 years or so?

2007-08-27 05:03:14 · 14 answers · asked by ? 4 in Other - Science

Is it true that robot voiced,wheelchair bound smartypants Stephen Hawking is in fact able bodied.He waits until there is no one around then performs aerobic dance routines and practises his martial arts techniques in front of a large mirror.He uses his wheelchair as a cover for extreme laziness............only joking Stephen if you read this.

2007-08-27 05:02:06 · 24 answers · asked by havanadig 6 in Other - Alternative

2007-08-27 04:58:54 · 6 answers · asked by Oscar 1 in Zoology

i was thinking about doing geology with shell, but i thought that i much rather be rambling on around volcanoes or something like that- i will have a geography degree but i have no idea where to start looking for employment within the uk for volcanologists! does anyone know where to look or if there are any exciting jobs i can do with geography other than teaching or surveying or travel agent because i would be bored stiff doing that!
as i have said with my other posts i dont care if you dont know! go away!

2007-08-27 04:57:38 · 4 answers · asked by paul simon 4 in Earth Sciences & Geology