Science & Mathematics - 27 September 2006

Can someone please factor this one for me -2x^2 + 4x Thanks a lot

2006-09-27 09:26:02 · 9 answers · asked by Anonymous in Mathematics

Not to sure what their like, what modules do you study in greater depth? + what sort of support do you get if you have a learning disibility?
please can i get some serious answers this time instead of people critising my spelling, thanks!

2006-09-27 09:25:59 · 4 answers · asked by s 2 in Physics

Here is the problem.

The population of Davisville is increasing at rate of of 5% each per year. If the population is currently 100,000 what will population be 4 years from now

2006-09-27 09:20:54 · 9 answers · asked by Jamie B 1 in Mathematics

i need this and fast please!!!!!!!!!!!1

2006-09-27 09:20:50 · 9 answers · asked by memooo 2 in Chemistry

the centripetal force on the car is 6000 newtons. what is the radius of the curve?

160m
80m
32m
16m

2006-09-27 09:19:06 · 5 answers · asked by sweetness01201 2 in Physics

2006-09-27 09:14:54 · 8 answers · asked by joe s 1 in Mathematics

I was driving across the country during the summer, so I needed to cool the interior somehow. Rolling down the windows causes a loss in fuel efficiency due to increased drag, but turning on the AC also consumes fuel.

Which is the more fuel efficient way to cool my car?

Thanks!

2006-09-27 09:13:28 · 12 answers · asked by Anonymous in Engineering

equation: s= -16x^2 +100x

how do i solve for "t"?

would "t" = 25 +/- (sqrt 625-4x) / 2

2006-09-27 09:07:45 · 3 answers · asked by shih rips 6 in Mathematics

I have a power supply whose outupt is 20V and 6.3 A.

The power supply has 2 positive cables and two ground cables coming out from it.

I need an output with the same cable design but that has 20V and 6A rather than 6.3 A.

What should I connect and where?

Please make it simple for me, thank you!!!

2006-09-27 09:07:02 · 7 answers · asked by Anonymous in Engineering

2006-09-27 09:04:10 · 2 answers · asked by Kish B 1 in Chemistry

Interpret

2006-09-27 09:03:09 · 7 answers · asked by Anonymous in Earth Sciences & Geology

USA Today reporter Paul Wiseman described the old rules for the three-digit telephone area codes by writing about "possible area codes with 1 or 0 in the second digit (Excluded: codes ending in 00 or 11, for all toll-free calls, emergency services, and other special issues)." Codes beginning with 0 or 1 should also be excluded. How many different area codes were possible under these old rules?

2006-09-27 09:03:07 · 6 answers · asked by Jay A 2 in Mathematics

2006-09-27 09:01:39 · 6 answers · asked by consumer 1 in Physics

2006-09-27 08:58:58 · 6 answers · asked by marianell 2 in Other - Science

When space shuttle starts coming back to earth. It suffers a significant amount of friction, which produces heat ..plasma trail..etc. Now is there any way we can fly like an aeroplane and get in the atmospheric level with limited amount of friction.

2006-09-27 08:54:16 · 9 answers · asked by eelantra 1 in Astronomy & Space

i heard that it hurts

2006-09-27 08:54:09 · 18 answers · asked by jessica m 1 in Physics

i heard that it hurts

2006-09-27 08:53:35 · 7 answers · asked by jessica m 1 in Physics

this is a linear equation

2006-09-27 08:49:03 · 9 answers · asked by sameerahsanusi 1 in Mathematics

I thought I had heard once that it did in it's earliest stages, but I can't verify. Any replies would be appreciated.

2006-09-27 08:48:54 · 12 answers · asked by BARD 4 in Astronomy & Space

Can someone tell me which came first?

2006-09-27 08:48:42 · 7 answers · asked by thunderbomb90 3 in Biology

2006-09-27 08:48:41 · 7 answers · asked by Cindy C. 3 in Astronomy & Space

How can I know how many lines of symmetry an object has? For eg a parallelogram or any other figure. how can I know if the object really has lines of symmetry or simple doesn't have any line of symmetry. Also how do we find rotational symmetry of some object?
Thanks

2006-09-27 08:46:43 · 4 answers · asked by Y L 2 in Mathematics

equation: 4x - 2y^2 = 9

would the equation be:
y= +/- sqrt 4.5 + 2x

if it is, then "y" is not a function of "x" right?

thanks for your help.

2006-09-27 08:46:34 · 4 answers · asked by shih rips 6 in Mathematics

2006-09-27 08:44:44 · 4 answers · asked by Shaina r 1 in Zoology

A roller coaster travels 40.1 m at an angle of 31° above the horizontal.
How far does it move horizontally?

How far does it move vertically?

2006-09-27 08:43:01 · 2 answers · asked by justinegunderson 1 in Physics

2006-09-27 08:40:02 · 23 answers · asked by bumberclarte 1 in Astronomy & Space

I am almost positive I got this right, but did I?
1.)What tissues are in the cutaneous membrane? epithelial and connective
2.)What tissues are in the mucous membranes? epithelial and connective.
3.)What are in the serous membrane? epithelial and connective.
4.)What are in the synovial membrane? connective.
5.)Membrane types not found in the ventral body cavity? Cutaneous.

These are the questions and the answers I assume, are they right? If not can someone help me with figuring out what is what... =)

2006-09-27 08:38:50 · 2 answers · asked by armstrong_terri 1 in Biology

total eclipse of the sun. From the moon you can see the disc of the earth hanging suspended in the lunar sky with a small black speck( the soalr umbral shadow) moving across it. What "phase" does the earth appear to be in at the time?why?

2006-09-27 08:38:46 · 9 answers · asked by mapleafgal sweet an delicious 1 in Astronomy & Space

values for the right ascension(RA) and declination of the moon at mid eclipse.

2006-09-27 08:35:43 · 2 answers · asked by mapleafgal sweet an delicious 1 in Astronomy & Space

Does it fill with sea water if oil is taken offshore and what damage does it do the the earth?

2006-09-27 08:34:47 · 12 answers · asked by RonT 2 in Earth Sciences & Geology