Science & Mathematics - 6 September 2006

(2x-3)(3x+4)

2006-09-06 10:57:40 · 6 answers · asked by many men 1 in Mathematics

complete the square of this quadratic y=x^2-10x then state the vertex.

2006-09-06 10:56:50 · 6 answers · asked by many men 1 in Mathematics

A certain automobile can decelerate at |a1| = 1.7 m/s2. Traveling at a constant v1 = 30 m/s, this car comes up behind a car traveling at a constant v2 = 5 m/s

How close to the slower car can the driver of the faster car come before applying his brakes and still avoid a collision?
D =______ m

Unfortunately, the driver of the faster car does not apply his brakes until he is just 30 m behind the slower car! Call the instant at which he applies the brakes t = 0.

At what time does the inevitable collision of the two cars occur?
t collision = ___s

2006-09-06 10:56:38 · 4 answers · asked by hardik p 1 in Physics

2006-09-06 10:56:02 · 3 answers · asked by jessi 1 in Physics

2006-09-06 10:52:04 · 18 answers · asked by cheshirecat192 3 in Astronomy & Space

Biology, animal kingdom, plantae, fungi, can't think of the rest need help.

2006-09-06 10:51:25 · 11 answers · asked by Anonymous in Biology

Okay, if have a problem where I have to prove the equality of the following sets:

A intersection ( B union C ) = ( A intersection B ) union ( A intersection C )

If D is a subset of A and D is a subset of B, then D is a subset of ( A intersection B )

If A is a subset of D and B is a subset of D, then ( A union B ) is a subset of D

Thanks in advance! I'll continue to work on this problem for a while before checking back, so feel free to take your time, I'll check back in 1.30 hrs

2006-09-06 10:50:59 · 1 answers · asked by ? 3 in Mathematics

I have an insect in my bathroom that looks like a ladybird but its yellow in colour with cream dots. Anyone know what this is? its slighter larger than a ladybird and possibly doesnt fly or hasnt attempted too in the 2 last weeks while its been in my bathroom.

2006-09-06 10:50:58 · 11 answers · asked by lollipop 2 in Biology

2006-09-06 10:49:57 · 7 answers · asked by seyi16914 1 in Physics

e^lnx=x

i understand why ln(e^x)=x, but not the other way around

2006-09-06 10:48:50 · 3 answers · asked by egyptsprincess07 3 in Mathematics

reptile species exist( and which produced eggs) long before there being any scientific records of chickens? Where did the chicken magically appear from if it didn't evolve from some other species?

Just figured I'd put a different "twist" on this repeatedly asked, stupid question. Seems anyone who accepts evolution agrees the egg came first and those that deny evolution seem to agree that the chicken must have come first because the chicken needed to exist to lay the egg.

2006-09-06 10:47:54 · 4 answers · asked by porthuronbilliam 4 in Other - Science

This is for a 10th grade biology class discussion.

2006-09-06 10:47:49 · 3 answers · asked by MORG225 2 in Biology

In the primate family, man is the one with the biggest brain and the largest sex organs.

I don't think evolution would give us alot of this stuff for no apparent reason. I don't believe in coincedences either.

Which came first?

2006-09-06 10:47:05 · 8 answers · asked by Anonymous in Biology

ok how would i type this into my calculator:

2.5 x 10^9 ??? Would i just put 2.5 times 10 and then the EE

and how would i put this in???

10^7 ..... would i keep the 10 or change it to one???? can you guys give me examples so i can understand thank u!

2006-09-06 10:46:31 · 4 answers · asked by Twilight Is Love 1 in Physics

Considering some of the major holes in it;

- the unexplained superluminal expansion of space early on
- the missing dark matter and dark energy
- the lack of explanation as to why the universe is accelerating apart

The big bang has some compelling evidence in it's favor no doubt, but science progresses by disproving things, not by confirming them. The successful prediction of CMBR was a test the big bang passed that allowed it to stay, not a finish line that proved it true. We can imagine other black body style theories that could result in the same CMBR. Red shift seemed to be anothe passed test, until we discovered acceleration. As a result, it is now a failed test. The big bang should have been seriously reconsidered the day that was discovered.

With these fundamental known major flaws, is it appropriate to downgrade the big bang from theory back to hypothesis? Is the widespread acceptance of a seriously flawed theory a raodblock to investigation?

2006-09-06 10:44:49 · 13 answers · asked by lenny 7 in Astronomy & Space

2006-09-06 10:43:13 · 6 answers · asked by seyi16914 1 in Physics

the type of science experiment is like mixing baking soda with another ingredient and getting results from the experiment.

2006-09-06 10:40:23 · 7 answers · asked by Michelle S 1 in Other - Science

can you name it and tell me in what url can i find it

2006-09-06 10:36:38 · 31 answers · asked by hypnonebula 3 in Mathematics

A car traveling at a speed of vo = 57 m/s stops smoothly (that is, its deceleration is constant) over a distance of d = 110 m.

a) After the car has gone 1/3 of the stopping distance, what is its speed?

v1/3 =_____m/s
b) If the car had been going 10 m/s but had stopped in the same d = 110 m distance, what would its acceleration have been?

a(vo = 10m/s) =______ m/s2

2006-09-06 10:36:37 · 2 answers · asked by hardik p 1 in Physics

2006-09-06 10:33:52 · 15 answers · asked by seyi16914 1 in Physics

2006-09-06 10:32:30 · 8 answers · asked by khalilahjohnson01 2 in Other - Science

I'll ask my college professor in my astronomy class tonight about this. My first class tonight. The apparent absence of shadows where shadows were expected to be is raising new questions about the faint glow of microwave radiation once hailed as proof that the universe was created by a Big Bang. Check out http://www.sciencedaily.com-Big Bang Afterglow Fails Intergalactic 'Shadow' Test
How would you feel if our planet Earth & all life wasn't created by the Big Bang, but by creation? Let's hear your intergalactic response & thoughts.

2006-09-06 10:32:24 · 12 answers · asked by ZORRO 3 in Astronomy & Space

Atoms tend to lose or gain electrons to complete the octet number of electrons in the outermost shell. Why is it to be 8 electrons and not 7 or any other number?

2006-09-06 10:31:29 · 3 answers · asked by Theme 1 in Chemistry

2006-09-06 10:28:45 · 9 answers · asked by Anonymous in Other - Science

in other woords what are three things that water can change into

2006-09-06 10:28:03 · 10 answers · asked by tasheena_miss_pinky 1 in Other - Science

Wheels "R" Us sells bicycles, tricycles, and unicycles. They have one more bicycle than unicycle in stock. If there are 60 pedals and 80 wheels, how many bicycles, tricycals, and unicycles are there in stock ????

2006-09-06 10:26:10 · 12 answers · asked by Anonymous in Mathematics

It's really frustrating to me that now there are only eight planets in the solar system. I just graduated from high school, and my little brother now has to "unlearn" the old way of memorizing the planets. What's "My Very Eager Mother Just Serving Us Now?"

2006-09-06 10:23:08 · 7 answers · asked by Abbey 3 in Astronomy & Space

2006-09-06 10:22:46 · 23 answers · asked by Mell g 1 in Mathematics

Those jawless fish are so freaky!!! Are they still out there, or have they become a thing of the past?

2006-09-06 10:21:12 · 10 answers · asked by Michelle♥ 2 in Zoology

On the first 4 tests of this term your average is 84%. If you think you can score 94% on all remaining tests, how many more tests do you need to bring your average up to a 90%

2006-09-06 10:20:52 · 13 answers · asked by many men 1 in Mathematics