Science & Mathematics - 8 July 2007

Find the discrimnant, and determine the number of real soultions. then solve .
please help me understand

2007-07-08 04:25:12 · 3 answers · asked by algebra 3 1 in Mathematics

the carbon dioxide is absorbed suction fans with a specific rpm based on the density and weight of carbon dioxide .the carbon dioxide is converted to carbon monoxide.then it is reacted with hydrogen to form water and pure carbon .the carbon obtained can be recycled to react with cardon dioxide obtained . the water obtained can be electrolysed to give hydrogen.once the process starts ,no raw materials from outside is required .the plant will be powered by either hydel power or wave energy or solar energy or nuclear energy .it will be located near the sea or ocean which also has a capacity to absorb carbon dioxide and will be surrounded by c4 plants

2007-07-08 04:24:15 · 4 answers · asked by Kaushik D 1 in Earth Sciences & Geology

1550 cal
155 cal
2.72 cal
2720 cal
650 cal

2007-07-08 04:18:33 · 2 answers · asked by hanaayr 1 in Chemistry

In February, you have a balance of $270 in your bank account. Each month you deposit $45. Let January = 1, February = 2, and so on. Write an equation for this situation. Use the equation to find the balance in June.


y – 270 = 45(x – 2) ; $450
y = 45(x – 4); $270
y = 45(x – 4); $180
y – 270 = 45x; $45

2007-07-08 04:11:06 · 5 answers · asked by Chealsea Y 1 in Mathematics

Doing research for an essay and need to know the origins of how a doctor becomes a doctor.

2007-07-08 04:09:40 · 2 answers · asked by glfranklyn 2 in Medicine

2007-07-08 03:59:18 · 3 answers · asked by letsgomets06isouryear 1 in Mathematics

I want to own the cute little african dogs but i also want to own a tiger i need to know how much they cost. i am getting a licenses to own ONE! but which one?

2007-07-08 03:56:37 · 4 answers · asked by babbyyb0o 1 in Zoology

My fiancee and I recently had a disagreement about whether snakes come out at night or not. I live in upstate NY, (about 2 hrs north of city) and in a wooded area. There are plenty of snakes out and about during the day. However, I always thought, and believed that it was too cool at night for them to come out. He says that they do, we just don't see them because it's dark. Do they come out at night or not?

2007-07-08 03:52:26 · 11 answers · asked by Mel 2 in Zoology

I've been trying to teach my cat to talk, but he's just not getting it.

2007-07-08 03:51:49 · 18 answers · asked by Anonymous in Biology

I mean they can kill a Great White shark so who risked taming the first killer whale?

2007-07-08 03:51:16 · 11 answers · asked by Siu02rk 3 in Zoology

c = 299'792'458 m/s (metres per second).

2007-07-08 03:37:13 · 11 answers · asked by Anonymous in Mathematics

say if we invented a machine that could make a gust of wind as fast as the speed of light could you blow the light away, examples a laser beam could you make it turn or something?

2007-07-08 03:34:38 · 4 answers · asked by Anonymous in Physics

What has 24 got to do with anything? I understand 365 and Sirus, but time is the one constant. The only sure thing in life is the passing of time. Shouldn't it be scientifically measured?

2007-07-08 03:20:51 · 8 answers · asked by Anonymous in Physics

name the following:
NaH2PO4
N2O5
N204
HC2H3O2

what is the difference between physical properties and chemical properties; give example!


10pts for the first correct answer!!! =D

2007-07-08 03:19:14 · 2 answers · asked by >D_ConTradictor< 4 in Chemistry

2007-07-08 03:18:00 · 6 answers · asked by BM's 1 in Astronomy & Space

I am studying Aeronautical Engg. I want to build a jet engine but lots more difiiculties are there. Hope your suggestions will help.
The suggestions can be of any type(not the joking one!).

2007-07-08 03:16:20 · 4 answers · asked by Anonymous in Engineering

In 5 seconds, a dog accelerates to its max speed, then maintains that speed for 10 seconds to reach his trainer, who was 50 meters away from the starting point of the dog. What was it acceleration for the first 5 second? For the whole 15 seconds?

2007-07-08 03:05:34 · 4 answers · asked by lune_ellise 3 in Physics

There is a regular hexagon with a segment connecting opposite points called d. The hexagon is in a circle and the diameter of the circle is called f. What would the direct variation equation relation d and f be? confused on how to get it using geometry of a regular hexagon

2007-07-08 03:03:53 · 2 answers · asked by Okay.... 3 in Mathematics

2007-07-08 03:03:23 · 2 answers · asked by venkata veena 1 in Physics

2007-07-08 03:02:02 · 3 answers · asked by Nicole M 1 in Medicine

- constant speed = 13.5 km per hour
- distant it travelled is 5 cm [i.e. very fast]

- what is the time it travelled in?

I actually made this question up to teach my sister. My sister and my I both got the same answer but my brother got a completely different answer.

2007-07-08 03:01:15 · 18 answers · asked by YounZ E 2 in Mathematics

I heard that stars get created in something called a star nucery i think if this is right how?

2007-07-08 02:54:13 · 15 answers · asked by night rider 2 in Astronomy & Space

What are the different terms used in algebra? PLease explain each one like monomials,binomials, etc...

2007-07-08 02:39:57 · 3 answers · asked by Gillbates 2 in Mathematics

draw the set-up and level.

2007-07-08 02:38:16 · 3 answers · asked by Anonymous in Chemistry

(4x^10 + 4x^9 + 20x^8 +16x^7) divide by 4x^7

2007-07-08 02:37:50 · 6 answers · asked by Anonymous in Mathematics

(x^2 - 2x) (x^2 -5x +4)

2007-07-08 02:35:06 · 5 answers · asked by Anonymous in Mathematics

Are there any good tutorial websites or resourses to learn how to solve integrals.

I find it difficult to solve integrals such as:

(x^3)(cos3x)

thanks

2007-07-08 02:30:56 · 2 answers · asked by Anonymous in Mathematics

what are the detailed description observations of:
+burning candle
+baking soda and white vingar
+a sodium bicarbonate tablet and to water
+pouring gas from steps 2 or 3 on a lit candle (i picked step 2)

2007-07-08 02:26:11 · 1 answers · asked by princess 2 in Chemistry

is nibiru real ? nasa denies it ! is nasa lying ? isnt the shadow gov. real ? will planet X destroy us ? will the fallen ones return ? are we doomed ?


I need yer opinion mates :D

Please stop with the shitty negative comments.

2007-07-08 02:18:22 · 3 answers · asked by lovestruckbyher15 1 in Astronomy & Space

2007-07-08 02:15:36 · 12 answers · asked by manish u 1 in Chemistry