Science & Mathematics - 3 December 2007

y=2x+1
x^2+y^2=13

2007-12-03 07:05:54 · 2 answers · asked by cluckcluck 1 in Mathematics

2007-12-03 07:04:19 · 5 answers · asked by stevan k 1 in Engineering

And if so, what direction can it be found in and does it have a small faint star to the bottom right?

2007-12-03 07:01:23 · 4 answers · asked by penny century 5 in Astronomy & Space

The capacity of an elevator is either 15 children or 11 adults. If 11 children are currently in the elevator how many adults can still get in? What formula would I use to get this answer? Children=11/15adults?

2007-12-03 07:01:14 · 3 answers · asked by Jeremy B 2 in Mathematics

I need help with my science!

2007-12-03 06:58:42 · 1 answers · asked by hannahizachocoholic 1 in Botany

http://s226.photobucket.com/albums/dd11/jackphotos123/?action=view¤t=EarthGravity.jpg

2007-12-03 06:58:32 · 2 answers · asked by Anonymous in Physics

1. Seven orbitals are present within it.
2. The maximum number of electrons it can contain is 14.
3. All electrons present have the same energy.
4. More than one of the above answers are correct.
5. None of the above answers are correct.

2007-12-03 06:58:04 · 3 answers · asked by Anonymous in Chemistry

Left middle or right?

2007-12-03 06:57:05 · 8 answers · asked by Anonymous in Biology

also how do you do that with tranformation to y=..........?

2007-12-03 06:56:07 · 4 answers · asked by starsgirl021687 2 in Mathematics

could someone help me by giving balanced equations of :
a. reactions of copper(II) hydroxide with hydrogen sulfide
b. silver nitrate and calcium chloride
c.acid rain on marble
d.thermal decomposition of limestone to produce lime
e.muriatic acid, pool acid that causes nails to decompose
f.balanced equation of how milk of magnesia treats heartburn
g.and two reactions tha show how sodium bicarbonate is amphoteric

i am having a hard time with chem.. please help me some... i will give 10 points to the best answers.. please help me if u really know how to do this.. i need to get a lot of points on this homework

2007-12-03 06:54:52 · 2 answers · asked by mj 2 in Chemistry

solve and check equation for x

x/x-2 - x+1/x = 8/x^2-2x

2007-12-03 06:54:32 · 3 answers · asked by God Bless America!~ 4 in Mathematics

2007-12-03 06:54:04 · 2 answers · asked by starsgirl021687 2 in Mathematics

Does factors as technology, accesibility (many machines can't work in some places of south america)

2007-12-03 06:53:55 · 10 answers · asked by Ligre 4 in Agriculture

2007-12-03 06:53:20 · 1 answers · asked by rickmorris9797 1 in Earth Sciences & Geology

2007-12-03 06:53:09 · 8 answers · asked by bam 2 in Mathematics

2007-12-03 06:51:40 · 5 answers · asked by Kelly C 1 in Mathematics

Rationalize the denominator 2/√7

THANK YOU! THANK YOU! THANK YOU!
FOR HELPING ME!

2007-12-03 06:47:47 · 4 answers · asked by ♥ ღAngelicaღ♥ 2 in Mathematics

what products are formes from the following reactions? write the chemical equaton to describe each.
a) a nail and hydrochloric acid
b) milk of magnesia and sulfuric acid
c) vinegar and baking soda
d) limestone and acid rain

i dont get any of my chem homework:S

2007-12-03 06:46:34 · 1 answers · asked by mj 2 in Chemistry

2007-12-03 06:44:25 · 9 answers · asked by Anonymous in Chemistry

2007-12-03 06:44:24 · 39 answers · asked by ♥ tweety ♥ 4 in Zoology

3. factor completely.

2a^4 - 18a^2

4. factor completely.

t^2 - (t - 1)^2

2007-12-03 06:43:59 · 2 answers · asked by Anonymous in Mathematics

1-16/y^2
_______ 1-8/y + 16/y^2

2007-12-03 06:42:55 · 2 answers · asked by ♥ ღAngelicaღ♥ 2 in Mathematics

An accident involves a car of mass 2000 kg which approachs a stationary car of mass 970.0 kg. The driver of car A applies his brakes 15.6 meters before he crashes into car B. After the collision, car A slides 15.6 meters while car B slides 27.9 meters. The coefficient of kinetic friction between the locked wheels and the road for both cars is 0.530. How fast was the driver of car A going before he hit the brakes?

2007-12-03 06:38:55 · 1 answers · asked by Butterfly 67 1 in Physics

2007-12-03 06:38:06 · 3 answers · asked by puma820 2 in Mathematics

Given only the lengths of the major and minor axis.

2007-12-03 06:37:30 · 2 answers · asked by Anonymous in Mathematics

It seems to me that the earth is just getting drier, which causes summers to be hotter and winters to be colder. We've been cutting trees at a greater rate for many decades all over the earth. And call me crazy, but it seems that in areas with more trees, and thus more humidity, the temperatures don't fluctuate as much as when there are no trees. An example would be day and nighttime extremes for deserts vs. rainforests.

2007-12-03 06:37:18 · 5 answers · asked by Anonymous in Weather

I am aware that i have a clock on my computer, in fact i am surrounded by clocks. But i want someone else to do it for me. I will chose the best answer to the person who tells me it. And you have to assume when i am going to look at it and if it will be right

2007-12-03 06:37:17 · 10 answers · asked by Anonymous in Geography

2007-12-03 06:36:26 · 3 answers · asked by Anonymous in Mathematics

2007-12-03 06:36:10 · 12 answers · asked by Anonymous in Chemistry

2007-12-03 06:35:16 · 11 answers · asked by Anonymous in Chemistry