Science & Mathematics - 23 August 2007

What are the equations of the asymptotes for the hyperbola (y+3)^2 – (x+2)^2/9 = 1?

A y+3 = ± (x+2)/3
B y+3 = ± (x+2)/9
C y+3 = ± 3(x+2)
D y+3 = ± (x+2)/3 + 1
E y+3 = ± (x+2)/9 + 1
F None of the above

2007-08-23 06:44:57 · 1 answers · asked by Anonymous in Mathematics

2007-08-23 06:43:59 · 24 answers · asked by dale t 1 in Physics

This has been bugging me all my life!

2007-08-23 06:40:35 · 2 answers · asked by Anonymous in Other - Science

how do u answer thiz....real fast

9 6/7 x 17 1/2=

2007-08-23 06:38:19 · 3 answers · asked by ? 4 in Mathematics

-2 <= a + 3 < 8

2007-08-23 06:34:35 · 3 answers · asked by Anonymous in Mathematics

Find the eccentricity of the following:
x^2/16 – y^2/25 = 1

A 4/5
B 5/4
C 16/25
D 41/25
E SQRT(41)/5
F 3/5

2007-08-23 06:31:45 · 2 answers · asked by Anonymous in Mathematics

Find the eccentricity of the following:
x^2/16 + y^2/25 = 1

A SQRT(3/5)
B 3/4
C 4/5
D 3/5
E 5/3
F SQRT(4/5)

2007-08-23 06:30:32 · 3 answers · asked by Anonymous in Mathematics

is it something like where fresh graduates set up their own companies/businesses?

2007-08-23 06:30:02 · 4 answers · asked by Mk 1 in Engineering

I'm a radiolography student and the one thing they don't teach us in school is where to start with kVp and mAs. I realize that there can't be a single correct technique chart that works everywhere, but I was wondering if the techs out there that have technique charts at their facilities would mind putting up a copy of their chart so that I can collect them and at least work out some basics to start from. The newer Merrill's has some such charts in it, but there are certain differences, like Merrill's standard SID is 48in. and every clinical site I've been to uses 40in. So I'm sort of at a loss, but I'd really like to learn this...

2007-08-23 06:27:46 · 4 answers · asked by roentgenologist08 2 in Medicine

x-5<3

then how would i graph this on a number line?

2007-08-23 06:27:11 · 4 answers · asked by Anonymous in Mathematics

If you know of any documented events, could you plz provide the link? and incase its real, how can one aquire the skill? thanks..

2007-08-23 06:25:01 · 8 answers · asked by x 2 in Paranormal Phenomena

2007-08-23 06:24:19 · 2 answers · asked by Mercedes 1 in Chemistry

2007-08-23 06:23:56 · 6 answers · asked by sparklle0913 2 in Engineering

2 1/4 + 3 2/5=

Simplify ur answer too?

2007-08-23 06:23:51 · 8 answers · asked by ? 4 in Mathematics

If you dont believe in (insert topic) and/ or dont have constructive information to add your just a spammer. I dont believe in most of the subjects on the Alternative science or mythologies but I find it interesting none the less. Im also an Athiest, speaking of likely myths, but im humble enough to not bash people for thier beliefs.

2007-08-23 06:21:49 · 10 answers · asked by Alex 6 in Paranormal Phenomena

Thick flat plate creates uniform gravitation field g=9.8m/s². The train moves at constant speed c/2 along straight track on the surface of the plate.

What is acceleration of gravity on board the train?


Could you, please, keep the solution within high school level, because otherwise I will be unable to understand it. Thank you.

2007-08-23 06:18:11 · 8 answers · asked by Alexander 6 in Physics

Can some one help me with this solution .. thanks
integral of x/x^2+2x+5 (2,1)

so far I got ..... u-1/u^2+4

2007-08-23 06:18:00 · 2 answers · asked by Anonymous in Mathematics

Equations -

2KClO3 ---> 2KCl +3O2
2KHCO3 --->K2O+H2O+2CO2
K2CO3 -----> K2O+ CO2

the KCl does not react under the conditions of the reaction.

If 100g of the mixture produces 1.80g of H2O, 13.20 g of CO2 and 4g of O2,

WAT WAS THE COMPOSITION OF THE ORIGINAL MIXTURE?(assume complete decomposition of the mixture)

P.S.----- please show me the full step..... homework help.... please...

2007-08-23 06:16:08 · 1 answers · asked by watever 1 in Chemistry

I took a massive rip of water-filtered 15x this morning. It was quiet, I was in my room, I had a makeshift blindfold around my eyes. My intent was to experience something spiritually uplifting, since my previous experiences had been experimental with my friends, and always resulted in me unable to communicate, with one repeating thought in my head, feeling very self conscious and "naughty", and pretty much unable to walk or stand properly.

But anyway this morning I felt like I was set up just the way I should be. I took a fat hit, put my blindfold down, and layed on my back. It kicked in fast, and I found myself with my blindfold off again, staring at (a chair I think it was) feeling uncomfortable, confused, and nervous, with some random, stupid, repeating thought in my head, like "What is he doing?" repeated 50x, which then turned to "Oh my god, what if this mental bedlam never goes away"? In summation, I just get really confused and worried about nothing. What can I do?

2007-08-23 06:15:25 · 10 answers · asked by The King in Yellow 1 in Other - Alternative

2007-08-23 06:09:06 · 22 answers · asked by Anonymous in Mathematics

and to turn from a gas to a liquid is called condensation and back is called evaporation, and freeze is liqiuid to solid and melt is solid to liquid, and sublimation is solid to a gas. Then what are the missing transformation? I.e. Solid/Gas/Liquid to Plasma and back and Gas to Solid?

2007-08-23 06:00:47 · 5 answers · asked by indie9999 2 in Physics

Okay we know that the two moon in august thing is a hoax and we still have a few days until it is over on the 27th and there are still a few idiots asking about it yet. I guess if they can't find the search bar there's not much hope of seeing two moons. I know this is not the place for polls. But since we have had to endure these stupid questions for so long now, I'm taking a poll in this category.

How many people will come onto yahooanswers on the 27th and ask "Has anyone been able to see the two moons? I can't see them yet. What direction am I supposed to look?" or anything similar to that.

I will do my best to add and time ends at midnight Central time.

The closest guess wins or the first to guess the correct number. Only guess one number- no ranges like 'between twenty and thirty'.

Good luck.

2007-08-23 06:00:08 · 36 answers · asked by Troasa 7 in Astronomy & Space

if you can, show work for it please

2007-08-23 05:59:42 · 9 answers · asked by Dont Disturb 2 in Mathematics

2007-08-23 05:49:57 · 6 answers · asked by bakin2it 1 in Mathematics

2007-08-23 05:47:54 · 8 answers · asked by bakin2it 1 in Mathematics

2007-08-23 05:46:11 · 8 answers · asked by bakin2it 1 in Mathematics

2007-08-23 05:45:21 · 6 answers · asked by bakin2it 1 in Mathematics

And if you're willing to tackle that, please also consider this:

An object of given mass strikes an immovable object at light-speed minus 1 cm/sec. How does the energy released from that impact compare to the energy that would be released if TWO objects of the *same* mass were each travelling TOWARD each other, and collided head-on, wherein each object were travelling at lightspeed minus 1 cm/sec.?

2007-08-23 05:43:01 · 5 answers · asked by Anonymous in Mathematics

And if you're willing to tackle that, please also consider this:

An object of given mass strikes an immovable object at light-speed minus 1 cm/sec. How does the energy released from that impact compare to the energy that would be released if TWO objects of the *same* mass were each travelling TOWARD each other, and collided head-on, wherein each object were travelling at lightspeed minus 1 cm/sec.?

2007-08-23 05:42:41 · 12 answers · asked by Anonymous in Astronomy & Space

How do I found out it x+2 is a factor of
h(x)=x^5-2x^3-x^2+3x-4?

Do I use synthetic division?? HELP

2007-08-23 05:35:35 · 1 answers · asked by amanda874 1 in Mathematics