Science & Mathematics - 2 December 2006

2006-12-02 04:13:35 · 8 answers · asked by rei 1 in Earth Sciences & Geology

give the d.e. of the following:
1.)Straight line through origin.

2.)straight line with slope and y-intercept equal

3.)straight line with some algebraic sum of intercept fixed as k.

2006-12-02 04:13:04 · 2 answers · asked by ladjot 1 in Engineering

I need help with my Algebra 2 study guide! Could soneome explain these problems for me?

****Wherver I typed SQRT there is a Square root symbol***
**Multiply & Simplify the following. Do not use decimal apporiximation**


the SQRT of 8 x^ 3 y^2

the SQRT of 75

the SQRT of 32x + 3 and the SQRT of 8x

the SQRT of 3(-3 SQRT 7)

(-4 SQRT 5 + SQRT 2 ) (2 SQRT 5 -3 SQRT 2)

2006-12-02 04:07:44 · 7 answers · asked by Brad C 1 in Mathematics

2006-12-02 04:07:17 · 9 answers · asked by Indian 2 in Astronomy & Space

I know i sound stupid for not finding that out on my own. but it has to sound beliveable and real, like in a differnet universe.

2006-12-02 03:59:35 · 19 answers · asked by alexandra0294 2 in Astronomy & Space

2006-12-02 03:58:22 · 7 answers · asked by whoknows 1 in Physics

How does pH affect stain removal.
How do oxidizing agents/reducing agents facilitate stain removal
How are enzymes employed in stain removal.
if a tree falls on me in the forest, do I make a sound?

2006-12-02 03:55:52 · 1 answers · asked by satisfaction 2 in Chemistry

what about a trinomial expansion using something similar ?

2006-12-02 03:55:05 · 3 answers · asked by mathlete1 3 in Mathematics

1) How many gallons of 10% solution must be mixed with 12 gallons of a 23% solution to obtain a solution that is 14%.

2) The rabit is racing with the turtle. The speed of the turle is 1ft/s, that of the rabbit is 8 ft/s. Since he is faster, the rabbit agrees to give the turle a 98 ft head start. How long until the rabbit catches up with the turtle?


http://answers.yahoo.com/question/index?qid=20061201223600AA2cteJ

2006-12-02 03:49:39 · 6 answers · asked by Smooth talking 2 in Mathematics

2006-12-02 03:49:08 · 17 answers · asked by Anonymous in Geography

2006-12-02 03:48:42 · 4 answers · asked by Anonymous in Geography

wat makes the pupil black,brown or blue...i need a scientific explanation and is there any way to change the color of one's pupils

2006-12-02 03:45:50 · 6 answers · asked by Anonymous in Biology

2006-12-02 03:44:53 · 20 answers · asked by Anonymous in Astronomy & Space

2006-12-02 03:44:10 · 2 answers · asked by Anonymous in Zoology

2006-12-02 03:43:51 · 2 answers · asked by Naddi S 1 in Physics

please no sun or fire and those stuff..give me something that's really interesting...i need it for the topic of an optics project

2006-12-02 03:43:28 · 6 answers · asked by Anonymous in Physics

The integral of cosx (sinx)^6 dx. Please show your work. Thank you :)

2006-12-02 03:42:01 · 5 answers · asked by ANON 1 in Mathematics

2006-12-02 03:41:59 · 18 answers · asked by Anonymous in Geography

This is for HW. If you aren't comfortable giving me the answer, please give me a source!! If you do give me an answer, give me a source anyway! Thank you so much ahead of time!!

2006-12-02 03:35:44 · 5 answers · asked by Wondering 1 in Chemistry

Which undergoes the greater change in temperature?

2006-12-02 03:34:07 · 4 answers · asked by whoknows 1 in Physics

2006-12-02 03:33:56 · 3 answers · asked by Anonymous in Chemistry

Can someone answer these questions for me??

Which trend decreases as you move up a group and across a period from left to right?
atomic nucleus
electronegativity
ionization energy
atomic radius


Which trend decreases for metals down a group?

atomic radius
reactivity
melting point
None of the above are correct.




Which of the following is least reactive?

gallium
chromium
calcium
potassium

The melting point for metals generally _______ as you go down a group.
increases
stays the same
decreases
gets all wiggly


The atomic radius is generally ______ than the ionic radius of a Non-Metal.

smaller
larger
the same
None of the choices are correct.



Atomic size generally _______ as you go down a group.

decreases
stays the same
increases
All of the above.

On the periodic table, protons increase:

bottom to top.
left to right.
right to left.
There is no pattern

2006-12-02 03:32:32 · 4 answers · asked by queenpravato 1 in Chemistry

Hot sauce,Lemon juice,Hydrogen Peroxide, or All Purpose Cleaner? I'm doing this for a science project.

2006-12-02 03:32:29 · 23 answers · asked by GG 2 in Physics

2006-12-02 03:30:47 · 6 answers · asked by mrkittypong 5 in Biology

moon quiz

2006-12-02 03:26:24 · 25 answers · asked by black beautiful brainy 1 in Astronomy & Space

Physics on the multi-dimensional level.

Anthony Silva

2006-12-02 03:25:17 · 4 answers · asked by THE NEXT LEVEL 5 in Physics

Express as a binomial square:

1) (3x+7)^2-84x

2006-12-02 03:23:25 · 10 answers · asked by Dark angel 1 in Mathematics

1. if base angles of a triangle are 22.5 and 112.5 , then the height is? well, i am appearing for a maths exam, for which i need to know such type of questions.

2006-12-02 03:23:15 · 6 answers · asked by shivar_007 1 in Mathematics

moon quiz

2006-12-02 03:23:07 · 16 answers · asked by black beautiful brainy 1 in Astronomy & Space

URGENT: Carbon dioxide is 1 1/2 times denser than air and slightly soluble in water. Anhydrous copper sulphate is white but turns blue if any water or water vapour is present. Carbon dioxide is given off when a metal carbonate reacts with dilute acid. Describe 2 different experimental routes to obtain test tubes full of pure,dry carbon dioxide gas

2006-12-02 03:22:49 · 1 answers · asked by sparklindiamondsatine 5 in Chemistry