Science & Mathematics - 27 September 2006

2006-09-27 14:59:38 · 11 answers · asked by Kim B 1 in Geography

For a chem homework question;
"Criticize the statemen 'all solids will melt if heated to a high enough temperature.'"

2006-09-27 14:57:04 · 5 answers · asked by fingersxcrossed 1 in Chemistry

A researcher reports that when groups of 4 children are randomly selected from a population of couples meeting certain criteria, the probability distribution for the number of girls is as given in the accompanying table

X P(x)
0 0.502
1 0.365
2 0.098
3 0.011
4 0.001


Determine whether a probability distribution is given, if one isn’t described, identify the requirements that are not satisfied. In those cases where a probably distribution is described, find its mean and stand deviation.

I think the mean is 2 and stand dev. is 1.414.

2006-09-27 14:56:27 · 1 answers · asked by rocky 3 in Mathematics

2006-09-27 14:55:40 · 6 answers · asked by .......... 4 in Mathematics

I'm supposed to translate into symbolic form and then find out whether it is valid or not.

Assume m and n represent particular, fixed integers.
If m is divisible by 6, then m is even.
But m is not even.
Therefore m is not divisible by 6.

After doing a truth table I think its VALID...am I right or wrong?

2006-09-27 14:51:30 · 2 answers · asked by dvl_n_dskyz 3 in Mathematics

2006-09-27 14:49:07 · 13 answers · asked by miss_liz_1991 1 in Mathematics

Hey, I need to factor this quadratic and I don't know how to MARF... can anybody tell me how?

2006-09-27 14:48:21 · 3 answers · asked by AnswerGiver 4 in Mathematics

i need urgent help in integrating this function. Please provide some explanation too.

Thnx...

2006-09-27 14:47:48 · 2 answers · asked by Xtreem 2 in Mathematics

Okay I got a really good answer on my last question, but how would you solve the angle of a triangle if all you knew where the sides and that it is a 90 degree triangle.

I know sin, tan, or cos, but am blanking pls help!!

2006-09-27 14:43:21 · 3 answers · asked by Justin 4 in Mathematics

2006-09-27 14:43:18 · 9 answers · asked by lizardmama 6 in Astronomy & Space

Any treasure? Like chests full of gold? Maybe just eels and stuff.

2006-09-27 14:43:14 · 26 answers · asked by Anonymous in Geography

How do u determine the number of subatomic particles if given the atomic number and mass?

2006-09-27 14:43:04 · 2 answers · asked by Anonymous in Chemistry

2006-09-27 14:43:03 · 1 answers · asked by abbie h 1 in Chemistry

2006-09-27 14:38:17 · 4 answers · asked by Honey 1 in Biology

If you are given a 90 degree triangle how do you figure out the other two angles?

Sides are -3 and -3 hypot. is unknown

2006-09-27 14:31:36 · 8 answers · asked by Justin 4 in Mathematics

I am able to contruct electronic circuits

2006-09-27 14:28:06 · 6 answers · asked by Poor one 6 in Engineering

2006-09-27 14:27:44 · 2 answers · asked by **palestine** 1 in Chemistry

has to be "unique" answers

2006-09-27 14:26:35 · 4 answers · asked by Anonymous in Other - Science

2006-09-27 14:24:25 · 6 answers · asked by **palestine** 1 in Mathematics

I had trouble with this because i didnt find any equation that converts volts to amps, since amp is the standard unit for measuring electric current.

2006-09-27 14:23:23 · 2 answers · asked by 3ajeeba_q8 2 in Mathematics

the Schrödinger equation, has an i explicitly in it and y is inherently a complex-valued function.

Does quantum mechanics need complex numbers? Couldn't one express y as the linear combination of two real fields, f and g, where y = f + i g. By substituting this expression into the Schrödinger equation, you could develop two equations for the two unknown fields f and g. Do you think that quantum mechanics demands complex numbers, or complex numbers are simply a convenient way of expressing things?

2006-09-27 14:23:12 · 2 answers · asked by nathaniel49 2 in Chemistry

I had trouble with this because i didnt find any equation that converts volts to amps, since amp is the standard unit for measuring electric current.

2006-09-27 14:22:43 · 4 answers · asked by 3ajeeba_q8 2 in Engineering

does anyone know how to explain Least Common Multiple in a easy way, where i can understand?

2006-09-27 14:18:09 · 8 answers · asked by Anonymous in Mathematics

2006-09-27 14:17:48 · 3 answers · asked by Michelle 1 in Medicine

Im takeing a pole.

Sence Pluto is now a "Dwarf Planet" I would like to here every ones opinion.

Who thinks Pluto is a Planet?

Who thinks Pluto is not a Planet?

Best Answer with best detail will reiceive 10 points. ( Why do u think Pluto is not a Planet or isnt? )

2006-09-27 14:17:37 · 3 answers · asked by kevin 2 in Astronomy & Space

2006-09-27 14:16:06 · 3 answers · asked by Kandii-Boo! 1 in Chemistry

where does our electricty come from?

2006-09-27 14:15:33 · 7 answers · asked by Anonymous in Other - Science

2006-09-27 14:14:16 · 4 answers · asked by Ms.LuPee ♥♥♥♥ DraKe 3 in Chemistry

2006-09-27 14:14:07 · 3 answers · asked by Sergio R 1 in Engineering

i think this place is some where in north america. as a results of some gravity effect, you can not stand vertical. As a result you stand at an angle. people visit that place to experience this effect.

2006-09-27 14:13:30 · 5 answers · asked by pranjalmogare 1 in Earth Sciences & Geology