Science & Mathematics - 4 November 2007

2007-11-04 21:19:35 · 9 answers · asked by asd 1 in Geography

Both serious and creative answers are welcome!

2007-11-04 21:17:39 · 7 answers · asked by Christian 2 in Other - Science

I am so surprised I have been trying for hours! have to give test
so, I figured since i cant stay up all morning due to promos in a few hours I felt it be best to ask the best ...thanks

z+y+x=6
2z+y=4
2x+y=8
am I correct please help! I am serious times running out

2007-11-04 21:03:43 · 2 answers · asked by aprilmacfadden 3 in Mathematics

2007-11-04 20:47:49 · 5 answers · asked by i_heart_stilettoes 1 in Biology

2007-11-04 20:41:26 · 15 answers · asked by strongbow 3 in Astronomy & Space

Given mass of an object as M, what is the velocity needed for that object to beat earth's gravitational pull. I am looking for the formula

2007-11-04 20:09:18 · 9 answers · asked by amythsm 1 in Physics

4x^2+ 4y^2 + 4z^2 - 8x + 16y=1

2007-11-04 20:03:47 · 3 answers · asked by Anonymous in Mathematics

Is paracetamol only dangerous in overdose?

Would increasing the daild dose do any harm?

Is it hazardous in long term use at the 'safe' dose?

2007-11-04 19:55:35 · 18 answers · asked by choperty 1 in Medicine

im researching one of Italys islands called Poveglia, meant to be the worlds most haunted place.(but thats not the question ) around the 1500,s the island became a dumping ground for people infected with the black plague, over 160,000 people were taken there some dead, and some dying, ..they were left there to rot into the ground..the locals say a thick layer of the island is made up of human remains, which it would be as its only a small island..the island is off bounds to pretty much everyone, including tourists...only the odd people have sneaked over there in curiousity, and ghost hunting...anyway what i want to get some light on is..would the plague still lay dorment deep in the soil still today, say if someone went there and started digging up parts of the island, could it disturb it, or would it be totally killed off by now,..remember these people were deeply infected, with no quaratine, or medical help, they were just dumped there and decomposed into the ground...

2007-11-04 19:44:37 · 15 answers · asked by ‡ЭЭЭ‡ 5 in Paranormal Phenomena

...that lies inside the first curve and outside the second curve

r= 1-sin
r=1

2007-11-04 19:33:51 · 1 answers · asked by Anonymous in Mathematics

2007-11-04 19:24:14 · 2 answers · asked by trudy a 1 in Medicine

How do I find x?

2007-11-04 19:05:11 · 9 answers · asked by Anonymous in Mathematics

2007-11-04 18:56:10 · 19 answers · asked by Anonymous in Physics

with a compass?

2007-11-04 18:54:57 · 10 answers · asked by Anonymous in Mathematics

2007-11-04 18:53:47 · 6 answers · asked by Anonymous in Earth Sciences & Geology

I'm relearning highschool mathematics, and teaching myself higher level mathematics, and I spent a few minutes on this question but got stuck at the point of determining cos(6b) = ? Please look at the question below, and correct my mistakes and determine the final answer. I'm curious. I have no homework to turn in, but I'd love to know how this works.


Thank you!


http://answers.yahoo.com/question/index;_ylt=AoQp4icTYHdSMTAd_9Lei3bty6IX;_ylv=3?qid=20071104012803AAnkttq&show=7#profile-info-uDLXZyxAaa

2007-11-04 18:48:46 · 2 answers · asked by rachelesse 3 in Mathematics

2007-11-04 18:42:15 · 11 answers · asked by fabplaygolf 1 in Zoology

2007-11-04 18:42:08 · 17 answers · asked by Help Needed 2 in Astronomy & Space

What is the derivative of 1+2x/(1+x^2)
The answer does not accord with my normally flawless mental computations...plus I don't see how it could have been arrived at...its 2-c/(1+x^2)^(3/2)...
Huh..?
First principles, anyone..?

2007-11-04 18:33:43 · 2 answers · asked by c0cky 5 in Mathematics

A thin, 80.0g disk with a diameter of 7.00cm rotates about an axis through its center with 0.260J of kinetic energy.What is the speed of a point on the rim?

2007-11-04 18:21:12 · 7 answers · asked by smart-crazy 4 in Physics

I need help deriving the following equation for covariance:

cov(X1,X2)=E((X1-mu1)(X2-mu2))

I think I can use the equation cov(X1,X2)=E(X1X2)-E(X1)E(X2) in the derivation if needed.

2007-11-04 18:16:20 · 1 answers · asked by dsaf f 2 in Mathematics

COMPUTERS

2007-11-04 18:16:13 · 1 answers · asked by zia 1 in Mathematics

2007-11-04 17:56:39 · 14 answers · asked by Anonymous in Astronomy & Space

2007-11-04 17:55:29 · 3 answers · asked by Rebecca S 2 in Medicine

Vitamin A also exists as an alsehyde which is Retinal. What can it contribute to medicine? what is it? how does it work?

2007-11-04 17:53:06 · 3 answers · asked by Rebecca S 2 in Medicine

I do know that Taupo Lake in the Central North ISland of New Zealand is one. As is the Yellowstone Park.
Here are 2 such examples.
Will there ever be a supereruption in our lifetimes or not ?

2007-11-04 17:49:24 · 2 answers · asked by ally59man 3 in Earth Sciences & Geology

In a yoyo shop, they found that they sold 1500 yoyos per week with a price of $2.50, but 2500 yoyos a week with a price of $2.00. Their fixed costs per week for the startup loan are $2000 and their cost to make each yoyo after paying that is $1.00
a) Find the demand function (price function)
b)Find the cost equation
c) Find the revenue equation
d) Find the profit equation
e) Find the price they should charge to maximize their weekly profit

2007-11-04 17:39:12 · 0 answers · asked by Puka 1 in Mathematics

2007-11-04 17:38:15 · 4 answers · asked by Anonymous in Medicine

Seeing that Mosquitoes cannot survive with any blood, and the blod they contain, comes from all the Vertebrates(all that have Spinals and Blood), apart from them taking Blood what else is thye use of Mosquitoes?

Because Studies Show that they only have to live on either Humans or animals that have blood.

NOW IN RETURN WHAT DO THEY GIVE?

2007-11-04 17:33:14 · 12 answers · asked by Reservoir 1 in Biology

Use the remainder theorem to find the remainder when 1x^3 - 3x^2 - 9x + 50 is divided by 2x + 7. Round your answer to the nearest hundredth.

2007-11-04 17:32:21 · 2 answers · asked by Anonymous in Mathematics