Science & Mathematics - 21 September 2006

2006-09-21 08:39:27 · 10 answers · asked by eifion e 1 in Mathematics

2006-09-21 08:37:36 · 2 answers · asked by lisa 1 in Biology

3/7 x + 5/9 y = 27

and

1/9 x + 2/7 y= 7

Why are these two equations aked in the same question? Are there inequalities? I don't get this.

2006-09-21 08:36:42 · 5 answers · asked by Anonymous in Mathematics

2006-09-21 08:34:59 · 9 answers · asked by lisa 1 in Biology

I have some problems in MSC ADAMS/Car

2006-09-21 08:33:27 · 1 answers · asked by Anonymous in Engineering

What name is given to a structure that is composed of at least two tissue types that perform a specific function for the body

2006-09-21 08:31:52 · 9 answers · asked by rainbow 1 in Biology

2006-09-21 08:31:17 · 5 answers · asked by DON 2 in Mathematics

2006-09-21 08:29:15 · 6 answers · asked by twinkie3469 1 in Medicine

I need to identify 3 different volcanic "episoder" that are documented anywhere in the world within the past 6 months! But one of the 3 places needs to be in North America! (I also need additional information about them) What i need to know is what website would be the easiest to find this information? I have already looked and I havent understood alot of what I was reading but it didnt look helpful! Can someone please help me?????

2006-09-21 08:27:59 · 5 answers · asked by confusedbuthere 2 in Earth Sciences & Geology

2006-09-21 08:27:20 · 23 answers · asked by cinderella 1 in Zoology

according to new research and studies which religion is most compatible and near to which religion.

2006-09-21 08:21:00 · 24 answers · asked by Flying Quill 1 in Other - Science

2006-09-21 08:20:57 · 3 answers · asked by sophie 1 in Chemistry

2006-09-21 08:19:53 · 10 answers · asked by Y 2 in Medicine

2006-09-21 08:17:55 · 26 answers · asked by responses_to_that_letter_i_wrote 1 in Astronomy & Space

do iguanas limbs grow back? i was just wondering

2006-09-21 08:17:06 · 9 answers · asked by Anonymous in Zoology

I need info on stepherson (the inventor of the lighthouse)
I need stuff like the date it was created, what it was made of and how it worked etc. can you give me some info?

2006-09-21 08:16:47 · 6 answers · asked by j d 1 in Engineering

it is expected that everything should bump into each other.

2006-09-21 08:16:32 · 5 answers · asked by alanb 1 in Other - Science

2006-09-21 08:16:21 · 1 answers · asked by FoxHound 2 in Other - Science

Its radius in a circle equals one, so a one-quarter circle equals just over 1.57 times its radius. Then 1.57 multiplied by 4 (as one-quarter circle multiplied by 4 to make a full circle) equals DOUBLE pi (6.28318...). So to equal SINGLE pi, its radius equals 1/2, so a one-quarter circle equals just over 0.78 its radius. Then 0.78 multiplied by 4 (as one-quarter circle multiplied by 4 to make a full circle) equals SINGLE pi.

2006-09-21 08:16:10 · 1 answers · asked by trey 1 in Mathematics

contains 1% suplur by mass. If the power station burns 5600 tonnes of coal a day, what mass of sulphur dioxide gas is released into the air each day?

2006-09-21 08:15:43 · 5 answers · asked by harrj 1 in Chemistry

2006-09-21 08:15:35 · 8 answers · asked by Anonymous in Medicine

i am doing it for my chemistry project... please hlp and thank you

2006-09-21 08:03:44 · 7 answers · asked by Model 3 in Chemistry

It is very intersting.

Why are the dogs so subordinative (submissive) to the humans? This is not common in the nature, except for us.

What makes them to "serve" us?

2006-09-21 08:01:35 · 17 answers · asked by davegesprek 1 in Zoology

1- the properties of electrical transformers . \2-their uses . \3-their applications.

2006-09-21 07:59:14 · 7 answers · asked by Anonymous in Engineering

When you stare at a dot or an abstract image for 30 seconds, then look away, you can still see the remnants of the image seemingly floating in your vision. I am curious as to what happens to your brain and/or eyes for this to occur.

2006-09-21 07:58:03 · 3 answers · asked by starfish9399 1 in Other - Science

You don't have to give me the answer, i just would like to know where to start:

Show that the curves parameterized by (i, j, k are vectors)
r1(t)=(.5t^2+t)i+(t+1)j-tk
r2(t)=sin(t)i+e^tj+tan(t)k
intersect the points (0,1,0) and that the vectors tangent to the two curves at (0,1,0) are parallel.

2006-09-21 07:57:06 · 3 answers · asked by Anonymous in Mathematics

You have 20 pieces of wood. 3 are a foot long. 3 are 2 feet long. 6 are a yard long. 1 is an inch shy of four feet long. The other 7 are all 5 feet long.

Hou many inches of wood do I have?

2006-09-21 07:56:24 · 6 answers · asked by echiasso 3 in Mathematics

just need year

2006-09-21 07:51:49 · 9 answers · asked by Anonymous in Weather

i dunno about you guys but i find it so hard to imagine that space can go on for ever but then i cant imagine it ending because when we get to the end of summit we usually hit a wall or something but then there is something on the other side of it. is that the case with space.

2006-09-21 07:49:32 · 43 answers · asked by the faceman 2 in Astronomy & Space

2006-09-21 07:47:53 · 1 answers · asked by Carla B 1 in Biology