Science & Mathematics - 15 December 2007

2007-12-15 06:46:07 · 12 answers · asked by Dylan 2 in Mathematics

2007-12-15 06:42:56 · 4 answers · asked by lak3rz08 2 in Earth Sciences & Geology

e^(x +3)=10^(4-x)
please show work. thanks. i got to x +3=(4-x)ln10 if that is right. idk. i know multiply= add so what would it b?? thanks!!

2007-12-15 06:42:37 · 5 answers · asked by dcgirl 3 in Mathematics

2007-12-15 06:41:17 · 3 answers · asked by Sherly M. 1 in Mathematics

I found a questionable picture on my 11 yr olds cell! It looks like either a dog or possibly a deer on its back with it's legs being held spread open! This picture of this animal had at least 6 nipples! Does anyone know how many nipples a doe deer has or if there is (was) a "freak" deer with "extra" ones? I don't want to question him yet about it for many reasons at this point in time! I do feel it is inappropriate but i want to get any info before i do question him! Thank You!

2007-12-15 06:40:55 · 1 answers · asked by Anonymous in Biology

29*3?

2007-12-15 06:37:28 · 7 answers · asked by fanny bandits 4 in Mathematics

If a corpse weighs 200 pounds and he or she is placed in a casket 2 foot wide, 7 foot long and 1 foot high which weighs 2 pounds per cubic feet, what is the total weight that has to be lifted?

2007-12-15 06:37:05 · 6 answers · asked by Anonymous in Mathematics

in math i'm taking patterns and can't do it ! cane you help?
but, i have to solve them in more then one way!
1,3,9....one of them: !1,3,9.....27,81,243. can anyone come up with another way? next one : 0,1,10....... and the one after that is:2,3,5,..... help ,please!!!

2007-12-15 06:35:53 · 4 answers · asked by Anonymous in Mathematics

2007-12-15 06:32:41 · 3 answers · asked by mj 1 in Earth Sciences & Geology

Assuming we had a mountain that high! The real question is - do we need these phenomenal sized rockets? A hot air balloon would get you 20 miles up - nearly half way. My mountain would be just a 70 mile walk!

2007-12-15 06:31:29 · 6 answers · asked by Anonymous in Astronomy & Space

like crops

2007-12-15 06:31:12 · 4 answers · asked by Anonymous in Astronomy & Space

I have x(t) = t + sin 2t and y(t)= t-sin2t
this is what i get for derivatives
x'(t) =1 + 2cos2t and y'(t) = 1-2cos2t

the answer key i'm looking at gives
x'(t) =1 - 2cos2t and y'(t) = 1 + 2cos2t

is there a mistake on the key

2007-12-15 06:29:36 · 3 answers · asked by bob oso 2 in Mathematics

If you put together a 10% acid solution and a 30% acid solution and get a 500mL 25% acid solution, how much of the 30% solution did you use? The options are 125 mL, 150mL, 375 mL, and 450 mL.

2007-12-15 06:26:21 · 3 answers · asked by Musicrox361 1 in Mathematics

Where can I purchase a high quality, cheap Tesla coil?

2007-12-15 06:26:00 · 2 answers · asked by John 1 in Engineering

2007-12-15 06:23:03 · 10 answers · asked by Anonymous in Astronomy & Space

2007-12-15 06:20:46 · 4 answers · asked by Anna S 1 in Geography

I have heard for years that eventually it will, but I really dont see that happening, as it would take a massive transformation and tons of money? Does anyone have any more information on this, are they still teaching the Metric system in Schools?

2007-12-15 06:18:41 · 8 answers · asked by kris76 4 in Mathematics

2007-12-15 06:14:14 · 7 answers · asked by Luis R 1 in Earth Sciences & Geology

If you have a pocket full of change, what is the most amount of money you can have but still not have exact change for a dollar?

Also tell me how you know!! plz explain!!
web sit maybe???!!!

2007-12-15 06:13:44 · 9 answers · asked by Anonymous in Mathematics

I'm not stupid, I just forgot. So please just answer the question.

3x+7=x-6
-8n+12=4n+36
5x+1=x+8

Show me step by step and explain.

2007-12-15 06:07:24 · 8 answers · asked by Anonymous in Mathematics

lease help asap thank u

2007-12-15 06:06:32 · 5 answers · asked by way 2 real 4 these hoez 1 in Chemistry

Been over 15 years since I have been in school for this stuff and I never used it.
Please refresh my memory:

For an electro-Magnet- what is it that makes it most effective? Wattage, right?
I can’t remember which battery configuration is the (Ohms law reference would be nice)
One for more power- parallel or series?

Parallel is more wattage? Right? I am so ooooooold………

2007-12-15 06:05:10 · 3 answers · asked by There you are∫ 6 in Engineering

why the why power supply for most electronic components must be DC.

2007-12-15 06:00:35 · 5 answers · asked by i m coming.................. 2 in Engineering

I need to know how to find the number of neutrons and electrons using only the periodic table and how do i do that.

2007-12-15 05:59:48 · 3 answers · asked by siukid42 2 in Chemistry

I read other people's thoughts. I know what they are going to do before they do them! I can also let people "know" what i am thinking. Is this weird?

2007-12-15 05:59:02 · 19 answers · asked by Anonymous in Paranormal Phenomena

okay, this bank robber is speeding along a busy high street in a stolen car, the police of chasing him, and they're closing in on him, as the man is going along, he spots a school up ahead, and it's home time for the kids. he has a dilemma, does he stop, and risk getting caught/jail, or does he keep going, and risk hitting an innocent kid. well, he keeps on going, and hits a little boy, sending him flying through the air.

this is the problem i have though, as the little boy, is the robber's younger self, and the "hit and run" left the little boy brain damaged, which made the robber choose to hit the kid instead of stopping/slowing down.

i can't decide what scientific phenomenon cause a sort of "portal" between the two times, as i want it to be based more in possible reality, than deep science fiction.

2007-12-15 05:58:55 · 5 answers · asked by Giant_Feet 2 in Other - Alternative

Figure: Triangle ABC with vertices A(-4,2), B(4,3), C(1,-3).

angles in order from least measure to greatest measure.

2007-12-15 05:56:50 · 2 answers · asked by Anonymous in Mathematics

A car dealer has 22 vehicles on his lot. If 8 of the vehicles are vans and 6 of the vehicles are red, and 10 vehicles are neither vans nor red, how many red vans does he have on his lot?

2007-12-15 05:56:07 · 5 answers · asked by Andreas 1 in Mathematics

When a photon descontructively interfers with itself where does the energy go?

2007-12-15 05:51:46 · 4 answers · asked by Phillip 3 in Physics

Please give a mathematical example. Thanks.

2007-12-15 05:50:39 · 4 answers · asked by Anonymous in Mathematics