Science & Mathematics - 3 January 2007

2007-01-03 11:08:18 · 12 answers · asked by cristian s 1 in Earth Sciences & Geology

2007-01-03 11:07:31 · 6 answers · asked by BriiEazii HAHA 1 in Earth Sciences & Geology

2007-01-03 11:06:53 · 16 answers · asked by Anonymous in Biology

2007-01-03 11:05:48 · 10 answers · asked by Anonymous in Physics

I was given this snswer to the question,"To play a game a die is rolledto see who goes first, four players are going to play the game. What is the probability that at least two people roll the same thing to the nearest 10th of a percent?"

I don't get the answer below, I understand how the top parts is figured out but the bottom just confuses me, 13/18 does not equal
40%? help


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Best Answer - Chosen By Voters

Use the negation. Consider the negation of the event
"At least two people have the same numbers",
it will be
"All 4 players have different numbers".
The probability of this event is:
(6/6)x(5/6)x(4/6)x(3/6)= 5/18.
Now, the event we are interested in has the probability 1 - 5/18= 13/18.

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P(least 2 people roll the same #)=number of player/total outcome

P = 4!/4C2 = 24/4C2 = 4 the answer is 40%

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2007-01-03 11:02:02 · 2 answers · asked by gg 4 in Mathematics

2007-01-03 11:01:29 · 7 answers · asked by nubian71 2 in Mathematics

K these are the questions

1)Two hundred twenty-five dignitaries are invited to a parade. There are three reviewing stands that each seat 70 people. How many extra chairs will be needed to seat all the digitaries?

2)There are 17 floats in the parade. Each float is decorated with1026 carnations. If 500 carnations cost $189.50, How much will it cost to decorate all 17 floats?

THANK YOU!!! I LOVE YOU!!

2007-01-03 11:01:20 · 4 answers · asked by My Life is in Black and White 4 in Mathematics

This is for aircraft skins and ribs to be bonded with hysol adhesive. I cannot use anodizing because of embrittlement.

2007-01-03 10:59:42 · 6 answers · asked by oreos40 4 in Engineering

3.Also How Do You Know When A Solid And A Liquid Form A Solution? 4.And How Can Mixtures Be Separated

2007-01-03 10:55:20 · 5 answers · asked by Jaanie baaby (: 5 in Chemistry

K these are the questions

1)Two hundred twenty-five dignitaries are invited to a parade. There are three reviewing stands that each seat 70 people. How many extra chairs will be needed to seat all the digitaries?

2)There are 17 floats in the parade. Each float is decorated with1026 carnations. If 500 carnations cost $189.50, How much will it cost to decorate all 17 floats?

THANK YOU!!! I LOVE YOU!!

2007-01-03 10:55:06 · 5 answers · asked by My Life is in Black and White 4 in Mathematics

2007-01-03 10:53:54 · 9 answers · asked by nubian71 2 in Mathematics

i forgot how to convert metrics like from millameters to meters! please teach me how to move the decimal around?

i know that the measurements are mm, cm, dm, m, hm, km

and please don't tell me to use a conversion generator online. i want to learn how to do this by hand. thanks

2007-01-03 10:53:31 · 7 answers · asked by :) 2 in Chemistry

HELP!

2007-01-03 10:53:05 · 3 answers · asked by bobmcbobman 1 in Mathematics

I think it's eerie..... and quite possibly true. You know the government won't let it out if they know anything about it. But I think that eventually the truth will come out. And I think that the truth will be that there are aliens and that they have been visiting us for quite some time. Your thoughts?

2007-01-03 10:52:13 · 11 answers · asked by Anonymous in Astronomy & Space

E = mc2/sqrt(1 - v2/c2) is simply the energy of a given unit of matter with mass m and velocity v, right?

2007-01-03 10:50:27 · 3 answers · asked by ツ 1 in Physics

I'm really new to the microcontrollers, i barely know anything. I would like to use them for some of my hobby projet but i don't know which one to choose!!! there are like millions of them out there!!! lets see PIC,ARM,8015... and so one. Ihave been doing some reasearch and i found all of the mto be prety much the same. I'm looking for a fast microcontroller with lots of inputs/outputs more that 30. I also would like to use these inputs/outputs as digital or analog. it would be nice if it could send data back to pc, throught serial/usb/com ports.

another thing, how are they programmed? What language r they most compatible with? I know c++ somewhat so that would be great.

once again i'm trying to get started with microcontrollers so any help would be apreciated.
thanks, dmitry

2007-01-03 10:50:25 · 5 answers · asked by Anonymous in Engineering

Lowest common multiple of

2x^4-2x^2y^2 and 4x^5+8x^4y+4x^3y^2 and 6x^2+6xy

2007-01-03 10:49:17 · 4 answers · asked by craighill5409 1 in Mathematics

i thought a glacier was a huge mountain on snow and a floe was similar to an iceberg...

2007-01-03 10:48:20 · 3 answers · asked by allison m 2 in Geography

im doing a science project and cant find an answer

2007-01-03 10:47:54 · 4 answers · asked by nicholas c 1 in Astronomy & Space

Find the prime factors of the trinomial

16x^2-40xy+25y^2

Thanks for the help

2007-01-03 10:46:35 · 1 answers · asked by craighill5409 1 in Mathematics

2007-01-03 10:46:14 · 6 answers · asked by Anonymous in Chemistry

2007-01-03 10:43:13 · 6 answers · asked by nauticaseven 1 in Mathematics

here are the questions:

1. What are 3 minerials that make up sediments?
2. What are 3 ways sedimenttary rocks can form? And their definition?
3. What are 3 classifaction of sedimentary rocks? (and examples of each)

Thoes are the major ones but here are a few more....
(I am looking for tese right now so you dont need 2 answer them, if you just know, please tell me:)
THESE ARE ALL QUESTIONS ABOUT IGNEOUS ROCKS:)(:

1. Igneous rocks that are dense and dark-colored. they form from magma that is rich with iron/magnesium and poor in silica?
2. light colored and have a lower density. They form from thick, stiff magma that contains lots of silia and lesser amounts of iron/magnesium
3.Igneous rocks that have minerial compositions between thoes of granitic/basaltic rocks
5.One kind of volicanic glass that has holes, caused by pockets of gas
6.The kind of igneous rock that forms below Earth's surface
7. igneous rock that froms in/near the earths surface

THANK YOU!!!!!!!!!!

2007-01-03 10:43:01 · 4 answers · asked by Anonymous in Earth Sciences & Geology

2007-01-03 10:42:56 · 18 answers · asked by nubian71 2 in Physics

* Using the relationship between pressure and temperature what would be a concrete example of this relationship

*using the relationship between pressure volume and pressure what would be a concrete example of this relationship

*using the relationship between moles of gas and pressure what would be a concrete example of this relationship


the concrete examples must be everyday examples.

2007-01-03 10:41:54 · 4 answers · asked by Anonymous in Chemistry

One......( Need 4 Larger army ships ) ( Six larger army planes the once that carrie the tanks ) (10 pump )to pump the water Low enought to sLide the hard Aquarium plastic under the titanic. to lift the titanice up we might need Inflateball to help with the lift the Titanic) They said the the Titanic is 2 and a half mile underwater ok we need to build a Aquarium around the Titanic.... Now how or we going to do this ?we need 10 water bumps to drain the water thats around the titanic this is why we need ships,the water low enought to build the Aquarium around it . the ship could sit a half a mile from the Titanic why the Aquarium has to be pull up and we dont wont the ship to be damge when the 10 army plane pull the Aquarium up it will have enought room to pull the Aquarium up and bring the titanic home and make sure the hooks are stronger and big dont cut know corner use the best to build this amazine Aquarium and make there enought room to bring the titanice home

2007-01-03 10:41:31 · 3 answers · asked by Anonymous in Earth Sciences & Geology

This "procedure" was recommended by my DO the other day as I have been having unresolved digestion issues. Wouldn't it make more sense and less embarrassment to have a colonoscopy or a scan of some sort?

2007-01-03 10:41:08 · 1 answers · asked by Migsoon 2 in Medicine

2007-01-03 10:40:36 · 17 answers · asked by ME 2 in Mathematics

can u please include alot of details??? thanx much!!!!

2007-01-03 10:36:25 · 2 answers · asked by -pudd 1 in Engineering

2007-01-03 10:32:31 · 7 answers · asked by 8 ball 1 in Earth Sciences & Geology