Science & Mathematics - 6 July 2007

iv'e only seen american people with them so can you only get them in america???

2007-07-06 06:33:22 · 6 answers · asked by Anonymous in Chemistry

2/3 multiply 16=
5/8 multiply 20=
4/5 multiply 10=
7/8 multiply 32=
4/9 multiply 18=
2/5 multiply 40=
3/4 multiply 24
3/5 multiply 15=
6/7 multiply 42=
1/7 multiply 21=
5/12 multiply 60=
2/9 multiply 64=
6/15 multiply 30=
3/17 multiply 59=
11/18 multiply 64=

denise has 20 pets. of the pets 2/5 are rabbits, 1/2 are fish, and 1/10 are dogs. how many of each does she have?be sure to sow your work.

melanie earned $40.00. she saved 1/4 of it. she plans to donate 1/2 of the remaining amount to her school fund raiser. how much will she donate?show your work

tanner has 36 polished rocks. he put 1/4 of them in a jar for a science experiment. he plans to give 4/9 of them to a friend. how many will he have left?

2007-07-06 06:33:01 · 7 answers · asked by ♥OFFICIALLYMrs-JONES♥ 2 in Mathematics

they called titanic a she, guys call there cars a she, they call ships a she, and i think some monster trucks she and machines she, why all a she, and not a he?

2007-07-06 06:32:08 · 2 answers · asked by Anonymous in Other - Science

I am making a light using a LED bulb and a USB cable. i have tried a 47k ,100k and a 10k resistor and all resulted in low lighting. Is the Resistor the problem or is it something else? and if it is the resistor, then what resistance level should i use? i got the directions on how to make the Light from this site ( http://forums.pcworld.co.nz/archive/index.php/t-52676.html ) however i am not completely sure if all the directions are right.

2007-07-06 06:28:11 · 5 answers · asked by Jake 2 in Engineering

1. When solids are dissolved in a liquid the solid take up the spaces between the liquid molecules. If I have 2 containers and I dissolve 50grams of salt in one and 50 grams of sugar in the other, which container would provide your aluminum block with a greater buoyancy force (assume both completely dissolve)?
Help please!!

2007-07-06 06:27:35 · 2 answers · asked by NATTY 1 in Physics

More specially, can you explain what P(x,y)dx mean?

How do you write it in differential form?

2007-07-06 06:25:59 · 6 answers · asked by Anonymous in Mathematics

You have X from Normal(mu=0, st.dev=5). What is E(X|X>0) ?

2007-07-06 06:25:56 · 2 answers · asked by magicbright2007 1 in Mathematics

2007-07-06 06:23:56 · 6 answers · asked by ? 1 in Mathematics

im 5ft3! im not very good at maths lol

2007-07-06 06:20:41 · 6 answers · asked by island eyes :) 2 in Mathematics

I read somewhere that we can't travel faster than the rotaion of the earth. But if we even go 1m.p.h in the same direction of it's rotation doesn't that mean we're going faster than it's rotation?

2007-07-06 06:19:23 · 6 answers · asked by dragon_wolf45 1 in Physics

2007-07-06 06:19:01 · 5 answers · asked by Alexander 6 in Physics

(m + n)2=
The 2 is squared
I really don't understand this help!
The title on top says the square of the sum of 2 numbers.
Can someone just explain this and do it step by step please? Thanks so much!

2007-07-06 06:17:31 · 9 answers · asked by Katbot 2 in Mathematics

-9 <=x<=-3 or x >= 1

x < 5

what would the solution of x ?

I am confused to find it because there is a OR .

so , how do i find the solution set ? what are the values ?

2007-07-06 06:13:09 · 7 answers · asked by calculus 1 in Mathematics

2007-07-06 06:08:42 · 4 answers · asked by Anonymous in Chemistry

In a wire (the positive), if i am correct, is where you put the resistor. However, does it matter which way the resistor is facing on a wire, such as 4th line comes first before the other lines.

2007-07-06 06:07:19 · 5 answers · asked by Jake 2 in Engineering

If so, at what stage would milk be produced. I'm not gonna do it, just wondered

2007-07-06 06:07:10 · 27 answers · asked by Anonymous in Biology

What is the molality of the resulting solution?

2007-07-06 06:06:06 · 4 answers · asked by Anonymous in Chemistry

Is it true in states like Tennessee, Georgia, Arkansas, etc. there is no winter?

2007-07-06 06:05:58 · 8 answers · asked by Anonymous in Weather

You are asked to prepare an aqueous solution of ethylene glycol (HOCH2CH2OH) with a mole fraction of 0.111.

2007-07-06 06:05:06 · 7 answers · asked by Anonymous in Chemistry

The cone is given a uniform surface charge density ( helpfull if calculated for uniform volume charge density also separately ), say sigma ( § ).

Use Gauss law if possible ( also I suppose that it would be easier with that with my experiance with tougher problems ).

The slant height is l
The base radius is R
The height is R
The field there is E
The potential there is V

Use the above variables ( preferably - no problem if you are using the variables of a previously solved question );

Thanks --- A dedicated student.

2007-07-06 06:02:36 · 4 answers · asked by Anonymous in Physics

How would you use the product rule to solve this question :

y (x) = (x^2+1)(x^3+1)

is this the next step: (2x)(x^3+1) + (3x2)(x^2+1) ??
I get confused with the algebra after that

the answer is y ' (x) = 5x^4+3^2+2x

but I would like someone to show me how step by step the algebra and did I set it up correctly?

2007-07-06 06:01:31 · 10 answers · asked by Anonymous in Mathematics

The population increase of iraq is given in the equation
A=A the a little o e^a.azst
where t is the years after 2003 . what will be the population A of iraq in 2020 if in 2003 it was 25 million

2007-07-06 06:01:07 · 3 answers · asked by Anonymous in Mathematics

2007-07-06 06:00:55 · 13 answers · asked by Tuhjay 2 in Weather

At body temperature (37oC), the Henery's law constant for N2 is 3.8 × 10-4.

2007-07-06 06:00:11 · 5 answers · asked by Anonymous in Chemistry

2007-07-06 06:00:06 · 4 answers · asked by spade 1 in Earth Sciences & Geology

2007-07-06 05:59:17 · 8 answers · asked by Anonymous in Mathematics

To better say I want to know do exist the elliptical red giant and seen ever till today? (Like as the egg)

2007-07-06 05:56:58 · 3 answers · asked by sadegh 1 in Astronomy & Space

This is from a Georgia Practice Test and my friend cant figure it out. All she knows is that R = y

2007-07-06 05:55:48 · 11 answers · asked by dreamer_babe15 1 in Mathematics

2007-07-06 05:55:45 · 6 answers · asked by Anonymous in Mathematics

If f(x) = 4x - 3, find the following: f(-1)?

If f(x) = 5x - 1, find the following: f(a - 2)?

Thank you.

2007-07-06 05:55:27 · 7 answers · asked by associates07 1 in Mathematics