Science & Mathematics - 31 October 2007

f(x) = (7)/(2+ln(5x))

2007-10-31 15:46:13 · 4 answers · asked by nahs1trumpet 1 in Mathematics

find the derivative of

G (y)= (y-1)^4 / (y^2 + 2y) ^5

2007-10-31 15:43:32 · 7 answers · asked by Josianne 3 in Mathematics

One mans lives at an altitude of 3000km for a year and another at sea level. What is the difference of time how do you calculate it?

2007-10-31 15:39:18 · 5 answers · asked by Anonymous in Physics

2007-10-31 15:38:51 · 5 answers · asked by dragonlady1 1 in Medicine

show rules used and all working, for full points! !

2007-10-31 15:37:16 · 5 answers · asked by Josianne 3 in Mathematics

Somebody told me there was a trick to finding the GCF, greatest common factor, but they didn't know what it was. So is there a trick and if so, what is it? If not, can somebody direct me to a website that might help me.

2007-10-31 15:37:04 · 3 answers · asked by :s 2 in Mathematics

show rules used and all working, for full points! !

2007-10-31 15:36:39 · 2 answers · asked by Josianne 3 in Mathematics

what is the answer for this?

2007-10-31 15:24:57 · 5 answers · asked by Anonymous in Mathematics

I have to memorize all the locations of European countries. by tomorrow. i got the capitals and names down but i don't know how to remember where they all go. is there any way to remember them like easier than just trying to memorize them?

2007-10-31 15:23:38 · 3 answers · asked by Anonymous in Geography

The arch of a concrete bridge is a semiellipse having a span of 60 feet and a central height of 20 feet. If the roadway is a 25 feet above the base, findat 10-foot intervals the distance from the arch to the roadway.

2007-10-31 15:21:41 · 2 answers · asked by charm 1 in Mathematics

if there is no space to run what should you do? and is it true that using the fire estinguisher will freeze the snake?

2007-10-31 15:20:24 · 11 answers · asked by kmb 2 in Zoology

A wire 80 cm long is cut into 3 pieces of lengths y, x and 80 − x − y and each piece is bent into squares. Find the absolute maximum and absolute minimum of the areas of these squares. Please help by showing me how you did it?

2007-10-31 15:17:19 · 4 answers · asked by cheri1286 2 in Mathematics

chemistry
heat and gas laws
mainly
charles and gays

2007-10-31 15:13:44 · 3 answers · asked by saringan 2 in Chemistry

2007-10-31 15:12:48 · 2 answers · asked by tmmz1107 2 in Mathematics

because you never forgot it? If so, what?

2007-10-31 15:11:29 · 18 answers · asked by Lelar 6 in Paranormal Phenomena

2007-10-31 15:09:39 · 4 answers · asked by Anonymous in Mathematics

2007-10-31 15:08:02 · 3 answers · asked by Anonymous in Mathematics

2007-10-31 15:07:54 · 4 answers · asked by nicole 2 in Weather

2007-10-31 15:06:16 · 6 answers · asked by Anonymous in Mathematics

prescription of the medicine in a bottle containing 50 milliliters?

2007-10-31 15:02:43 · 2 answers · asked by Anonymous in Medicine

does the amount of microfarads a capacitor can hold also tell what amperage it puts out? or is there a formula to figure out amperage of capacitors?

2007-10-31 14:57:27 · 6 answers · asked by Alex 3 in Engineering

2007-10-31 14:56:29 · 10 answers · asked by Anonymous in Parapsychology

If they say they can see the future and stuff..then why have they not all won the lotteries..nor gamble....if you were to see the future wouldn't you take advantage of it? It's all fake..why do people pay for this stuff?

2007-10-31 14:45:26 · 8 answers · asked by Anonymous in Parapsychology

Do you have the unconsious chance to do things over? How do you find out if you have lived in another time, place & what gender were you at that time?
Is there gender switching?
What are some of your experiences & how did you find out who you were & how & why you died?

2007-10-31 14:45:13 · 8 answers · asked by 2 makes 1 4 in Paranormal Phenomena

Int[x * sqrt(x+2)]
I end up with 1/du after substituting and it is not working.
Help!!

2007-10-31 14:45:12 · 3 answers · asked by Anonymous in Mathematics

Ok I was trying to explain this to my friend who is in differential equations, but i couldn't remember how to exactly do it myself.

The problem looks like it should be super easy

y" + 2y' + y = e^x

I know you have to find the solutions of the homogeneous part, which would be y(x)=ce^x (its a double root when you work it out)

But the problem i can't remember is how to figure out the "particular" solution. Could somebody refresh my memory on this?

2007-10-31 14:44:02 · 2 answers · asked by Anonymous in Mathematics

Paul invites 10 couples to a party at his house. He asks everyone present, including his wife, how many people they shook hands with. It turns out that everyone questioned--he didn't question himself, of course--shook hands with a different number of people. If we assume that no one shook hands with his or her partner, how many people did Paul's wife shake hands with? (Remember, Paul did not ask himself any questions)

Source: AcoPS (Zeitz)

2007-10-31 14:42:44 · 3 answers · asked by absird 5 in Mathematics

ok so there was an earthquake in South Bay Area today yesterday and my mom was running for the door frame with my sister and I ran out and told them to just hurry up and get under the table because the table was right behind them.

so i was wondering what was the best place to stay at? would it be under the table? door frame? or just running outside? i know it would probably be best to do whatever is close to you but in some circumstances what would be better?

is it true that in strong earthquakes running outside would be bad because the road would start to split in half?

2007-10-31 14:42:29 · 1 answers · asked by m.chung 2 in Earth Sciences & Geology

2007-10-31 14:40:52 · 11 answers · asked by Yoguide 2 in Geography

Deffrientiate the above function please! show all working for full points! thanks!

2007-10-31 14:40:37 · 4 answers · asked by Josianne 3 in Mathematics