Science & Mathematics - 29 December 2007

OK I want to know how to make a lemon battery but I have NO clue how to do it???Can anyone help me??

2007-12-29 05:59:04 · 7 answers · asked by pinkdancerksd 2 in Other - Science

3. The data received regarding students scores on a practice OGT needs to be represented in a graph. There were 1200 practice tests taken, and the scores ranged from 0 – 46 points. Which type of graph is appropriate to display the frequency of the data?

A. a circle graph
B. a histogram
C. a line graph
D. a scatterplot
4. Which graphical representation would best display data so that the median and the upper and the lower quartiles can be easily identified as well as any outliers can be seen?

A. a histogram
B. a line graph
C. a stem-and-leaf plot
D. a box-and-whisker plot
5. Paulette kept track of her monthly expenditures and categorized them into housing, utilities, transportation, food, entertainment, and miscellaneous. Which of the following graphical displays will best represent Paulette’s category expenditures in relation to her total budget?

A. a bar graph
B. a circle graph
C. a line graph
D. a scatterplot

2007-12-29 05:57:28 · 2 answers · asked by JetPack 1 in Mathematics

2007-12-29 05:56:34 · 30 answers · asked by tweety 1 in Chemistry

If there are a million billion (ish)stars in our galaxy and there is a million billion (ish) galaxies in the known universe the possibility that our planet is the only one that can support life has got to be pretty remote.

2007-12-29 05:54:20 · 16 answers · asked by lumpy 3 in Astronomy & Space

In 100g it has 360kcal,

how would I work out how many kcal would be in 71g?
could you show how you do it aswell?

Many thanks, Wish you all the best, take care :)

2007-12-29 05:52:31 · 10 answers · asked by Anonymous in Mathematics

y = e*x^4 + d*x^3 + c*x^2 + b*x^1 + a*x^0
what is the equation for this where y = 0?
and also
y = d*x^3 + c*x^2 + b*x^1 + a*x^0
it is not going to be an answer to any test question.

2007-12-29 05:49:07 · 5 answers · asked by stevenos_2005 2 in Mathematics

2007-12-29 05:48:33 · 4 answers · asked by samuel B 1 in Engineering

2007-12-29 05:47:16 · 14 answers · asked by yankswin101 2 in Astronomy & Space

1. (3x^-2y)^-1/(2xy^-2)^0

a) 1/3x^2y
b) 3xy
c) 3y/x^2
d) x^2/3y



2) [2pq^-1/4q^2]^-1

a) 2/pq
b) p/2q
c) 8pq^3
d) 2q^3/p

Thank you for your help

2007-12-29 05:45:42 · 4 answers · asked by Noname 2 in Mathematics

Is geography a worth while major? Can I get a job with just a BS? I am planning an emphasis in GIS and Remote Sensing. Both will result in a BS and certificates in GIS and Remote Sensing. Would it matter what sex and my age when I go looking for work in this area? Also, I have to choose between learning Java, MatLab, or C++.....which one would be most beneficial?

2007-12-29 05:45:04 · 3 answers · asked by operaphantom2003 4 in Geography

if U stands for element of

then


if A U B and B U C

then A U C


That's pretty easy...is this what set theory is?

2007-12-29 05:38:38 · 2 answers · asked by Anonymous in Mathematics

temperature and architecture of the surface of the Earth are actively determined by the biotic components of the planet.

I'm feeling generous again, 10 points to the best/correct answer

2007-12-29 05:37:44 · 3 answers · asked by Cactus Jack 4 in Geography

2007-12-29 05:37:32 · 7 answers · asked by nofear_intrepid40 1 in Zoology

Sample GMAT question wants me to calculate:
(x+2) - (x+1) - (x-1) - (x-2) where x = -100.

In my reckoning this would be:
(-98) - (-99) - (-101) - (-102) = 204

However the test software tells me it is:
-98 - 99 - (-101) - (-102) = 6

I have copied out the original formula and triple checked it; but I do not understand why it treats -99 differently to -101.

Thanks in advance.

2007-12-29 05:31:35 · 6 answers · asked by Anonymous in Mathematics

when you fell an object from a 10th floor bldg,you can get the height of that bldg. by counting how many seconds until you hear that objects sound.can you give me the formula and the solution of it?thanks a lot

2007-12-29 05:28:59 · 3 answers · asked by thelighthouseartist_0 1 in Mathematics

2007-12-29 05:27:36 · 3 answers · asked by Jayy 1 in Earth Sciences & Geology

2007-12-29 05:26:52 · 5 answers · asked by pink a link 2 in Medicine

http://news.yahoo.com/s/space/20071228/sc_space/jetsspiralinreversewhirlpoolfromstar

Here's the article, but this isn't the first time I've seen this, what the heck does supersonic speeds mean when you're talking about space?

2007-12-29 05:26:35 · 8 answers · asked by Anonymous in Astronomy & Space

How do I solve this, and what is the answer?

2007-12-29 05:26:06 · 9 answers · asked by frank e 1 in Mathematics

2007-12-29 05:25:01 · 7 answers · asked by Perpetua 2 in Physics

2007-12-29 05:22:05 · 8 answers · asked by Shellshock 2 in Physics

The FEMA B-pad report explained the squibs in the collapse of the twin towers by using the physics of a pancake collapse. Later the NIST report claimed that FEMA had been wrong, and in fact it was a pile driver collapse that brought down the twin towers. This changes the physics of the collapse. Then later in there report, NIST addressed the squibs by simple referring you to the FEMA report. This seems to be inconsistent of rational logic
I am not positive about the details thus I am seeking those who better understand.

2007-12-29 05:20:09 · 4 answers · asked by WA 9/11 Investigators 2 in Physics

Is it possible to construct a rectangle in which the ratio of the perimeter to the length of the long side is equal to the ratio of the length of the long side to the length of the short side?

2007-12-29 05:18:32 · 4 answers · asked by me8md 3 in Mathematics

2007-12-29 05:17:39 · 16 answers · asked by Robert B 2 in Weather

2007-12-29 05:17:00 · 6 answers · asked by Anonymous in Geography

2007-12-29 05:16:35 · 10 answers · asked by Rokkam N 1 in Engineering

could anyone please show me the steps to solving this cubic equation by factorising it

2007-12-29 05:15:20 · 9 answers · asked by akta p 3 in Mathematics

area of an isoseceles traingle wid one side 'x' is

2007-12-29 05:13:47 · 3 answers · asked by Anonymous in Mathematics

plenty of sand
wild life lives there
people live there too
when wind/storms etc. you do not want to be stuck out in the open

for homework...and i cant figure it out...i want to have a backup guess...I already put somali...i doubt its sahara (she told us it wasn't)

2007-12-29 05:06:08 · 9 answers · asked by Anonymous in Geography

but in 1993 a man land on the moon

2007-12-29 05:04:06 · 13 answers · asked by Jose Z 1 in Astronomy & Space