Science & Mathematics - 12 December 2006

I'm really intruiged by it. Could you please only answer if you really know what you're talking about.

2006-12-12 14:28:05 · 2 answers · asked by Charlie Brown 2 in Astronomy & Space

I am stuck at this question, can someone please explain how to find this?

1 - sin x
---------- = (sec x - tan x) ²
1 + sin x

2006-12-12 14:27:56 · 6 answers · asked by Vienna 3 in Mathematics

Estimate P'(0) if P(t)=200(1.05)^t. Please explain how to do this

2006-12-12 14:25:30 · 4 answers · asked by Anonymous in Mathematics

2006-12-12 14:25:06 · 5 answers · asked by Anonymous in Biology

#2. according to the fossil record,what where the first modern anthropoids to evolve and about when did they evolve?
#3. why was A.afrcanus unlike any primate fossil skull that Dart had ever seen?

2006-12-12 14:23:56 · 2 answers · asked by Yolanda P 1 in Biology

2006-12-12 14:21:35 · 2 answers · asked by Fatih D 1 in Chemistry

how do i do:


solve for r:
D=rt

thanks!

2006-12-12 14:21:12 · 3 answers · asked by kitty 3 in Mathematics

I want to know..
Has anyone ever done this science project?
If so, please tell me which color resists melting the best--Red,Orange,Yellow,Blue,Or Brown.
Points will be given to the CORRECT answer. Please don't guess.
Thanks.

2006-12-12 14:20:30 · 5 answers · asked by lalala 2 in Other - Science

2006-12-12 14:19:03 · 9 answers · asked by natewat99 2 in Mathematics

what are the products of this reaction
what what is the new balanced equation?

MgO + H2O -------> ?

2006-12-12 14:18:06 · 3 answers · asked by sgrockergirl 2 in Chemistry

1. Terri begins walking east at 2 miles per hour at 1 p.m. If cindy leaves from the same point 30 minutes later walking wast at 3 miles per hour, when will she catch Terri?... Show Work and Explain Please..

2006-12-12 14:18:00 · 3 answers · asked by SaY wHaT >? 2 in Mathematics

The reactants are:

1) An aquaeous solution of two ionic compounds
2) A single compound
3) Two elements
4) Oxygen and a compound of carbon and hydrogen

Help is greatly appreciated.

2006-12-12 14:17:38 · 3 answers · asked by Random G 3 in Chemistry

2006-12-12 14:16:38 · 2 answers · asked by Anonymous in Chemistry

2006-12-12 14:16:37 · 2 answers · asked by Fatih D 1 in Chemistry

I see so many cases where people have so many different new abilities, like wolf boy, pets are getting smarter, are we experiencing the next step in evolution that lies right before out eyes?

2006-12-12 14:15:44 · 7 answers · asked by Anonymous in Biology

Consider the equation x + e^x = 0.
Is there a solution to this equation?
Why or why not.

2006-12-12 14:15:16 · 4 answers · asked by Marty Kay 2 in Mathematics

2006-12-12 14:14:08 · 3 answers · asked by Fatih D 1 in Chemistry

2006-12-12 14:12:43 · 4 answers · asked by Jr C 1 in Mathematics

this has to do with chemistry

2006-12-12 14:09:41 · 3 answers · asked by =D 2 in Chemistry

is it possible for us to build a Lunar station for Science, Hotel & Resort, Theme park(s), Moon hiking, and 4 wheeler driving on the moon's surface? i always dreamed of building one. but is it possible? how much do you think it will all cost? i want to build one almost like the one in the game called "Echo Night: Beyond" (but more Exciting)

this is serious! if you dont have anything nice to say dont say it!

THANX!

2006-12-12 14:08:33 · 5 answers · asked by vlad|KARNAFËL 【KOR】 3 in Astronomy & Space

The first three terms of an arithmetic sequence is given as x, 4, y and the first three terms of a geometric sequence is given as x, 3, y.

Find the value of 1/x + 1/y

Please help I'm kind of stuck on this one. Full explanation would help.

2006-12-12 14:08:33 · 3 answers · asked by GWHIZ 2 in Mathematics

2006-12-12 14:07:41 · 5 answers · asked by pebbles06106 4 in Zoology

2006-12-12 14:07:30 · 2 answers · asked by Anonymous in Earth Sciences & Geology

In the movie "De Ja Vue," they talk about bending time. Going from a, to be, in less time. That confused me. Example; I am driving from New York City, to Los Angeles. Say it takes 4 days to drive there. If I "bend time" to where it takes 2 days to drive there, what about everything between NY and LA? Do we squeeze all of it together?
To make the distance shorter, Or WHAT? I am confused.

2006-12-12 14:05:03 · 3 answers · asked by Anonymous in Physics

my friends niece has this problem and im trying to help her out so if anyone can help me and my friend's niece plz tell me cuz she is like failing math right now!!!

2006-12-12 14:03:22 · 20 answers · asked by bfscoobydoo22 2 in Mathematics

what is the derivitive of xcox^2(x)

2006-12-12 14:02:51 · 5 answers · asked by Julio 4 in Mathematics

2006-12-12 14:02:22 · 3 answers · asked by Nikki L 1 in Zoology

Could someone please explain would a larger Ksp value have a more or less soluble the salt and why? I would greatly appreciate anyone's help!

2006-12-12 14:01:34 · 2 answers · asked by Anonymous in Chemistry

area where an oceanic plate descends into the upper mantle?

2006-12-12 14:01:06 · 1 answers · asked by Anonymous in Earth Sciences & Geology

Two questions

A car travelled at an average speed of 45 km/h for 1.25 h, then at an average speed of 65 km/h for 45 minutes. How far did it travel in total?

A driver travels by car at 105 km/h [E] for 1.0 h. She then drives for 2.0 h at 82 km/h [W]. Determine her:
-resultant displacement
-average velocity
-distance traveled
-average speed

2006-12-12 13:59:59 · 3 answers · asked by margarittanosalt 2 in Mathematics