Science & Mathematics - 24 August 2007

i heard it was augest 27 at 12 am

2007-08-24 02:58:23 · 8 answers · asked by Anonymous in Astronomy & Space

Most everyone sees the "man in the moon". However, when I first really looked at it, I saw a dragon's head. What do you see when you look at the full moon?

2007-08-24 02:55:16 · 7 answers · asked by Anonymous in Astronomy & Space

Can i take exp(y) = exp(x(x+2)^-2) and find

exp(y)y' = -2x(x+2)^-3
y' = -2x / (x+2)^2

is there something wrong here?

2007-08-24 02:51:50 · 3 answers · asked by couermort22 1 in Mathematics

Apart from discovering aliens and meeting the president,is being an asronomer the same as Jodie Foster in the movie contact,you know,her life and stuff?Or are there some facts they egzagerated?

2007-08-24 02:51:02 · 8 answers · asked by Lily 1 in Astronomy & Space

You are given the four points in the plane A=(-6,-8) B= (-2,1) C=(3,-7) and D=(8,8)
The graph of the function f(x) consists of the three line segments AB, BC and CD. Find the integral f(x) dx by interpreting the integral in terms of sums and/or differences of areas of elementary figures.

integral 8(top) -6 (bottom) f(x) dx=??

I found the x intercepts to be -11/8 and 16/3
I can't seem to get the right answer though.

2007-08-24 02:50:14 · 2 answers · asked by Anonymous in Mathematics

2007-08-24 02:49:25 · 5 answers · asked by tyron p 1 in Botany

A)

x y
0 0
1 1
2 0
3 1
4 0

B)

x y
0 0
1 1
2 -2
3 3
4 -4

C)
x y
0 0
1 1
2 4
3 9
4 16

D)

x y
0 1
2 3
4 5
6 7
8 9


I think its C, but not sure!

2007-08-24 02:44:21 · 2 answers · asked by Mari 1 in Mathematics

KClO3>>>KCl+O2
Al+HCl>>>AlCl3+H2
Fe+O2>>>Fe2O3
HCl+NaOh>>>NaCl+H2O
KNO3>>>KNO+O2
N2+O2>>>NO2
PCl3+H2O>>>HCl+H3PO3
CaBr2+AgNO3>>>AgBr+Ca(NO3)2
Cu+Cl2>>>>CuCl2
O2+Sb2S3>>>>Sb2O3+SO3

2007-08-24 02:38:22 · 5 answers · asked by myk 1 in Chemistry

2007-08-24 02:36:44 · 1 answers · asked by idlevil_73 3 in Chemistry

OK, my uncle and I have had these weird debates of why algebra is important...he says it is useless and just waists our time in school...he says its not nescesary at all in life, he thinks it should be banished from being taught. I think on the contrary.

So why are the below topics important...what can they be used for...because it would be useless if u couldn't apply it to anything in life (making equations etc)

inequalities

functions

linear equations (elimination, substitution methods and Cramers Rule)
Completing the Square
Quadratic formula and quadratic functions
exponents
(basically all the topics covered in my Algebra II class-there was more)

2007-08-24 02:35:14 · 15 answers · asked by JUST ME 1 in Mathematics

What is heat lightning and why/when does it occur?

2007-08-24 02:22:24 · 6 answers · asked by SnakeEater 2 in Weather

Please don't use parabola general formula.

2007-08-24 02:16:17 · 3 answers · asked by monkey 2 in Mathematics

2007-08-24 02:15:54 · 7 answers · asked by Anonymous in Mathematics

2007-08-24 02:14:52 · 13 answers · asked by jenniesmith48 1 in Zoology

2007-08-24 02:13:41 · 1 answers · asked by Anonymous in Biology

2007-08-24 02:12:55 · 0 answers · asked by Fatty 1 in Earth Sciences & Geology

2007-08-24 02:09:11 · 3 answers · asked by Cherry 1 in Geography

could someone help me in buying a good telescope? Also, if you could send me link to website to buy and also good specification to buy. Thanks

2007-08-24 02:01:16 · 13 answers · asked by Gagan S 2 in Astronomy & Space

I have two children in diapers. I spend $80 per month on diapers. There are 52 diapers in a package.

2007-08-24 02:01:07 · 9 answers · asked by Anonymous in Mathematics

now is this actually possibe?
is it soemthing like -
1000/ no. sides = side lengths
360 / no.of sides equals exterior angles.

and can you work out the area from this?
is there a formula i can apply to get the area of regular 4, 5, 6, 7, 8, 9, 10 (etc) sided shapes?

2007-08-24 01:59:24 · 5 answers · asked by sweetmango 2 in Mathematics

2007-08-24 01:56:30 · 3 answers · asked by Anonymous in Engineering

HSSG

2007-08-24 01:55:12 · 1 answers · asked by razza_08uy 1 in Medicine

log3(x+1)+log3(x-7)=2

(3 is the base of the log)
HELP!!

2007-08-24 01:46:36 · 7 answers · asked by amanda874 1 in Mathematics

i want it in point n give me explanation.
pls tell me the natural factors n also contribution of human being in this effects

2007-08-24 01:39:46 · 5 answers · asked by Nad10 2 in Biology

2007-08-24 01:34:49 · 29 answers · asked by Anonymous in Astronomy & Space

aside from dogs

2007-08-24 01:32:28 · 11 answers · asked by plasticbag 2 in Zoology

1.)Two angles in a plane that hhave a common vertex and a common side but no common interior are called ____ angles.

2.)How many lines can be drawn through 2 giveen points?

3.)If two lines intersect, then they intersect in exactly one ______.

4.)If two planes intersect, then their intersection is a _____.

5.)Write hypothes, the conclusion and conveerse of the conditional statement.

If R is a straight angle, then m angle R= 180.

a.)Hypothesis:
b.)Conclusion:
c.)Converse:

6.)Name the property of algerbra or of congruence which justifies each statement.
a.)If x+3=18, then x=15 ____
b.)If m angle P+m angle S+m angleT=180 and m angleT = 40, then m angles P + m angle SS + 40= 180.

2007-08-24 01:24:08 · 6 answers · asked by Anonymous in Mathematics

An object is propelled vertically upward with an initial velocity of 20 meters per second. The distance s (in meters) of the object from the ground after t seconds is s = -4.9t^2 + 20t.

(1) When will the object reach a height of 100 meters?

(2) What is the maximum height of the object?

2007-08-24 01:19:19 · 4 answers · asked by journey 1 in Physics

Could someone please explain step by step how I could solve the following equation by completing the square: k^2-8k+12=0 . I'm getting stuck when it comes to factoring it out. So far I have k^2-8k+12=0
k^2-8k=-12
k^2-8k+16=-12+16
(k+4)^2=4
This is where I get stuck at do I need to further square k+4. I have the answer to the question but the answer I figures out doesn't match what the correct answer is supposed to be.

2007-08-24 01:18:28 · 9 answers · asked by Creole 2 in Mathematics

An object is propelled vertically upward with an initial velocity of 20 meters per second. The distance s (in meters) of the object from the ground after t seconds is s = -4.9t^2 + 20t.

(1) When will the object be 15 meters above the ground?

(2) When will the object strike the ground?

2007-08-24 01:17:59 · 2 answers · asked by journey 1 in Physics