Science & Mathematics - 2 November 2007

2007-11-02 05:01:33 · 6 answers · asked by dubwise_15 1 in Engineering

Sn(s) + 2H+(aq)-------yields---Sn 2+(aq) +H2(g
Assume ideal gas behavior

2007-11-02 04:55:47 · 1 answers · asked by Toby B 1 in Chemistry

how do i completely clear all the games from my Texas Instruments TI-83+ graphing calculator? I have several games under program and I want all of them completely deleted. AND is it possible to do this without clearing the memory or resetting the calculator?

all help is greatly appreciated! :)

2007-11-02 04:45:11 · 2 answers · asked by Anonymous in Mathematics

What would be 3 ordered pairs for the following equation?

y= -3^(x+2) -4

2007-11-02 04:45:07 · 4 answers · asked by Anonymous in Mathematics

Would you wear a sweatshirt andbe comfortable or would you need a big jacket? Could you wear a snow jacket and feel good or would that be too warm?

2007-11-02 04:43:47 · 2 answers · asked by cweta37 1 in Weather

Add: x² / x -5 + 4x – 45 / x -5

and

Subtract : 7 / y - 7 – 1 / y + 7

Divide: x²-36y² / 5x^2+30y ÷ (x² + 6xy)

I'm so very confused on how to work these problems can anyone show me the steps? Any assistance would be greatly appreciated!

2007-11-02 04:32:27 · 3 answers · asked by Anonymous in Mathematics

I dont understand this qustion? PLease Help

If the speed of light is about 3x10^5 km/sec, what is the greatest distance an object cn be seen if the hubble constant is 20 km/sec/10^6 l.y.

2007-11-02 04:29:03 · 2 answers · asked by ted 1 in Astronomy & Space

i dont have any idea

2007-11-02 04:25:45 · 3 answers · asked by adrian c 1 in Geography

i need this trivia until Sunday November 4. i need a trivia for each of this.

2007-11-02 04:22:47 · 5 answers · asked by Kate Rañola 1 in Physics

Hello.
I'm presently a college freshman, interested in mathematics and computer science. I thought about majoring in physics, but I don't think I would enjoy working as a physicist.
So now I'm considering majoring in math, with my support field in computer science. I'm just sort of afraid that I may turn out sucking at high-level math, or something? I'm taking calculus 1 now and I guess I'm okay at it.
Is majoring in math generally a good idea? What sort of careers can I expect out of it?
I don't really know what I want to do. Just whatever doesn't suck.
I don't want to be a teacher. I'd rather a velociraptor eat my face.

2007-11-02 04:21:06 · 9 answers · asked by Bill 1 in Mathematics

so i want to become some sort of doctor but i get a little queasy when i see blood and a huge gash or something like that. what would be a good career where i can help people without having to cut them open?

some careers that i've looked into include:
-physical therapy
-optometry
-radiology
-pathology
-dentistry

how much do these doctors deal with cutting people open and/or seeing blood and stuff? i know that stuff is generally associated with doctors but is there any doctor career that doesnt? just curious.

2007-11-02 04:20:36 · 10 answers · asked by Anonymous in Medicine

My understanding is that potentially all stars have planets orbiting around them. When the gravitational pull of the star is gone, what happens to the planets?

2007-11-02 04:17:00 · 12 answers · asked by cowburns@verizon.net 1 in Astronomy & Space

T and U are two digits of the number 9T68U. This 5 digit number is divisible by 15. Find all of the different possible values of (T+U).

2007-11-02 04:16:08 · 7 answers · asked by tobias 2 in Mathematics

2007-11-02 04:13:32 · 7 answers · asked by love 6 in Mathematics

I take classes online, so its hard to get math help when i dont understand things
Find the value of "k" if f(x) = 3x2 + 6x + 1 is put into general form.

can someone please explain this?
what do i do?!

2007-11-02 04:06:42 · 2 answers · asked by Anonymous in Mathematics

What is the function of the eyepiece with regard to the image formed by the objective lens. Where is the image of the objective lens formed?

2007-11-02 04:04:18 · 3 answers · asked by scott j 1 in Astronomy & Space

I heard that daddy longlegs or jerrylonglegs or whatever you want to call them! The things that are paperlight, fly, have long legs(duh) and thin long body. Its meant to be that they have the most poinsonous venom in them - but no teeth to use them!! Which has to be the cruelest evolutionary joke!!

And i know that the octopus is the most well known venomous animal.

2007-11-02 04:04:16 · 16 answers · asked by Athena 3 in Zoology

I am Male Human Species so why do I have a Female Infant Feeding Duct?

2007-11-02 04:04:10 · 12 answers · asked by D Bate A Bull 3 in Biology

2007-11-02 04:03:35 · 3 answers · asked by chaindropz 4 in Engineering

Why a two lens system is needed to make a telescope? (Make sure to refer to the object distance and the focal length of the objective length)

2007-11-02 04:03:29 · 2 answers · asked by scott j 1 in Astronomy & Space

There is a flight of stairs. If you go up them 2 at a time, there is one left over. If you go up 3 at a time, there are 2 left over; 4 at a time there are 3 left over; 5 at a time there are 4 left over; 6 at a time there are 5 left over; and 7 at a time there are none left over. How many stairs are there, and could you show me the steps involved in ariving at the answer (no pun intended).

2007-11-02 04:01:20 · 1 answers · asked by Simonizer1218 7 in Mathematics

How can I show the left and right hand limits of

xsin(1/x) don't exist as x approaches zero?

Thanks

2007-11-02 03:57:38 · 2 answers · asked by mobaxus 2 in Mathematics

I'm a 10th grader and I need a clever Math project. We've been working on Quadratic Equations. What can I do?

2007-11-02 03:55:20 · 4 answers · asked by 00000 1 in Mathematics

I am working on a spread sheet and cannot get an if fuction to relate to 3 different cells. I need it to say the name of 3 different companies. Ok if E5G5

2007-11-02 03:50:46 · 2 answers · asked by willieo80 1 in Mathematics

2007-11-02 03:48:01 · 1 answers · asked by Josh H 2 in Mathematics

in math what is 25% of 15?

2007-11-02 03:45:01 · 42 answers · asked by lori griffin 1 in Mathematics

2007-11-02 03:39:38 · 1 answers · asked by z A h J 1 in Physics

2007-11-02 03:37:03 · 8 answers · asked by Anonymous in Zoology

and also write the corresponding relation matrices.
Check the graph at following links:
http://ispmasters.com/questions/discretemath.gif

2007-11-02 03:35:12 · 2 answers · asked by yesnomiyes 1 in Mathematics

2007-11-02 03:25:21 · 14 answers · asked by Anonymous in Mathematics