Science & Mathematics - 14 December 2006

Factoring by Grouping- Math?
If anyone could help me with these i think that they are confusing and if yuo could show me the steps of how to get to the answer that would help me so much. thanks in advanced.

Factor Completely

1. m^2 - 10m + 9
2. x^2 + 8x -20
3. 3x^2 + 10x + 3
4. 2xy - 12xz + 3y - 18z

Thanks Again!! :-)
fyi that ^ 2means squared

2006-12-14 02:56:08 · 6 answers · asked by Anonymous in Mathematics

how can I find the nth term in sequence like this:
7, 25, 63, 129, 231, 377

2006-12-14 02:55:37 · 1 answers · asked by Eee 1 in Mathematics

2006-12-14 02:55:12 · 9 answers · asked by shreetama06 1 in Astronomy & Space

2006-12-14 02:54:26 · 6 answers · asked by tj c 1 in Weather

2006-12-14 02:54:09 · 2 answers · asked by Jebuz 2 in Chemistry

2006-12-14 02:52:46 · 7 answers · asked by Anonymous in Chemistry

2006-12-14 02:52:39 · 1 answers · asked by Aishu 1 in Physics

2006-12-14 02:52:27 · 3 answers · asked by Anonymous in Geography

2006-12-14 02:52:17 · 7 answers · asked by Dub 1 in Botany

2006-12-14 02:51:55 · 4 answers · asked by Maria V 1 in Mathematics

2006-12-14 02:50:39 · 3 answers · asked by AFIZ S 1 in Engineering

Lecturer notes state that the answer is [(SO3)2-] = Ka2.

Why isn't the eq. concentration of (SO3)2- related to initial concentration of H2SO3?

2006-12-14 02:49:52 · 1 answers · asked by Stanley 1 in Chemistry

Why does hot air travel quicker than cold air? Thanks -x-

2006-12-14 02:49:38 · 17 answers · asked by Anonymous in Physics

I DO beleive humans are being manipulated by some force-- both mentally and physically. If you are not one the humans being manipulated in this way, then it is easy for you to say this kind of stuff does not happen.

I have a friend who, when he was younger (11 or 12), used to hang out with his caucasian friend. One day they were playing in the friend's room and out of nowhere the little boy pulled down his pants and opened up his butt cheeks in front of my friend. He later admitted he'd seen his brother masturbating by sticking a finger in his anus, and that was why he did this in front of my friend. A few weeks later, my friend fell asleep in his room with the window open. He lived on the bottom floor apartment and said there was no screen. He said when he awoke, he felt very, very strange, and he felt a soreness in his butt, as if he'd been poked or prodded in that area. He could not quite explain the feeling, but he felt he'd been manipulated in some way in his sleep.

Within that year or so after this experience, strange things started to happen to him. He started catching visions of sick, sexual acts and he started battling homosexual thoughts and urges. These thoughts were attacking his mind, as he'd never experienced any of this until the incident with his friend and the later incident when he was asleep. The wierdest thing of it all is that while all of this was going on, he began to be singled out by other men, especially caucasian men, who would walk by him and smirk or would try to make eye contact. Even now when he and I go somewhere, homosexual men (black and caucasian) stop what they are doing and try to stare inconspicuosly-- and my friend is constantly avoiding eye contact or having to defend his space by looking them directly in the eye and asking what it is they are staring it. Just the other day, we stopped at a gas station and my friend walked in the store to get a cup of coffee. I noticed an older black guy walking out of the store at the same time. They guy stopped and looked back as my friend walked through the door. I looked at the guy as if to ask what he was looking it. The guy got in the passenger seat in a truck to the left of me and when my friend walked out of the store and got back in the car, he happened to look up and the guy was staring at him intensely. I looked up as well and the guy was still staring and seemed to be mumbling something. My friend rolled down the window and asked him what was he looking it and told him it was rude to stare at people like that. The guy just sat there. My friend thinks he is being targeted by alient forces or spirits and they are able to recognize him telepathically. Because he NEVER experienced this before the childhood incidents, he feels his friend was somehow connected to those spirits and that something was inserted into his anus while he was asleep that day. He thinks he was spiritually "tagged" by something and this is why they recognize him now. You always here here about extraterrestrial probings -- these are probably markers that they place inside some humans or targets of study.

In addition to the sexual thoughts my friend battled, he also battled graphic dreams that are oftentimes predictions, heard voices, experienced super robotic eyesight once, and says while he is sleeping, he is sometimes communicating with phsychologist or mind doctors who are trying to manipulate him in some way. He doesn't smoke or drink, nor does he take any type o drugs. He is definitely being manipulated and has battled these things for several years. It is too much for one person to bare and he feels this happens to others who may be afraid to admit it. These "aliens" per say, whether they be foreign spirits or evil spirits that are able to change shape and form, may not look like monsters. They come to inhabit human bodies and walk around undetected. They have definitely gained access to our gene pool. We ask for divine protection in everything we do, even if its just to post on the internet. A lot of these sites are actually run by foreign entities that single out people based on their answers, then find a way to befriend them in real life. I know I risk ridicule,but I don't care. The toll that this has taken on his life, and my own as a friend to him, is detrimental. We seek answers.

2006-12-14 02:49:14 · 10 answers · asked by Empress Sky 2 in Other - Alternative

2006-12-14 02:48:55 · 13 answers · asked by charo 2 in Other - Science

Suppose there were 100 other civilizations in our Galaxy. If they are spread randomly within the Galaxy's volume, about how far away would the nearest one be? State your assumptions to get partial credit, at least, for your answer. Hint: supppose that 1% of the stars in the Galaxy had a civilization, so that there would be about 1 billion civilizations in the whole Galaxy. How far would the nearest one be, on average? You would have to find out to what distance to look such that the volume searched would contain about 100 stars.

2006-12-14 02:46:02 · 5 answers · asked by joe f 2 in Astronomy & Space

i hate math

2006-12-14 02:45:44 · 8 answers · asked by stormy s 1 in Mathematics

If anyone could help me with these i think that they are confusing and if yuo could show me the steps of how to get to the answer that would help me so much. thanks in advanced.

Factor Completely

1. m^2 - 10m + 9
2. x^2 + 8x -20
3. 3x^2 + 10x + 3
4. 2xy - 12xz + 3y - 18z

Thanks Again!! :-)
fyi that ^ 2means squared

2006-12-14 02:44:35 · 2 answers · asked by Anonymous in Mathematics

2006-12-14 02:44:30 · 3 answers · asked by edisto197sp 1 in Zoology

I think that's what it's called. We worked with it in Biology today. Something about genetics, whether you can taste it or not. Does anyone know why or about this?

2006-12-14 02:43:54 · 1 answers · asked by Anonymous in Biology

How much volume of 10 M HCl should be diluted with water to prepare 2 litre of 5 M HCl? And plz do xplain wat u do?

2006-12-14 02:43:34 · 2 answers · asked by Annie 1 in Chemistry

one day..3 people went to buy a radio at a price of $30..so they gave the sales person the $30 (every one paid $10) ...when the owner came he told the sales person that there's a discount on this radio and it's only for $25..and he has to pay back the $5 to them....the sales person took the $5 and give evry one of those 3 guys $1 and took $2 for himself...
so when every one take $1 ..then he paid $9..
9*3 = $27 and the $2 for the sales person = $29
where did the dollar went??????????!!!!!!!!!!

2006-12-14 02:42:06 · 5 answers · asked by M. Abuhelwa 5 in Mathematics

2006-12-14 02:41:28 · 2 answers · asked by tterrab22 1 in Chemistry

We all know that, in cross product(vectors) we use "sine" and in scalar product(vectors) we use "cosine".My question is why use
"sine" in cross product or dot product and why we use "cosine" in scalar product?What's the mystery?tell me in details.

2006-12-14 02:34:34 · 7 answers · asked by star123 2 in Mathematics

speed of light squared is around 431.277173057 (give or take) What does this speed relate to in a nuclear explosion?..Speed of the Neutrons smashing into atoms?

2006-12-14 02:33:50 · 3 answers · asked by Anonymous in Physics

A) mean B) modeC) medianD) midrange

2006-12-14 02:31:26 · 2 answers · asked by Anonymous in Mathematics

I am currently working with an immersion heater and I am worried about using a too powerful heater and causing the water around the heater to flash boil thus allowing the heater to burn out due to lack of conduction to the water because of the air gap. I had heard that this was possible, but have never seen it in practice. Any help would be great. Thanks

2006-12-14 02:29:31 · 2 answers · asked by Chad F 1 in Engineering

26262517161614172116
16181715151916172215
1917162716

2006-12-14 02:29:07 · 1 answers · asked by Anonymous in Mathematics

How is (3x+11)/((x-3)(x+2)) = (4/(x-3))-(1/(x+2))??

**I don't see where the 4 and 1 came from**

And

(x^2 + x)/(x-1) = (x2+x+2 + (2/(x-1)))??

What am I missing the logic here, cuz I don't see how they got from one to the other?

Thanks!

2006-12-14 02:27:50 · 8 answers · asked by Anonymous in Mathematics

2006-12-14 02:26:35 · 13 answers · asked by daffyringneck 2 in Physics