Science & Mathematics - 29 July 2007

A die is rolled 20 times and the number of twos that come up is tallied. Find the probability of getting the given result.

Exactly five twos.

Thanks!

2007-07-29 18:02:26 · 2 answers · asked by fubcka 1 in Mathematics

ok, the amount is $46.99
If you had to divide that over 4 days, how much would you get to spend per day?
Im SO bad at math.

2007-07-29 18:02:16 · 2 answers · asked by Anonymous in Mathematics

A student wants to be among the top 5% in his class. the mean is 140 and standard deviation is 14. What is the minimum score he needs to get to meet his goal?
Please show me how to do this.

A student scored 150 on his midterm. The mean is 160 and standard deviation is 14. what % of student score above that student?

2007-07-29 18:01:10 · 1 answers · asked by bluemoon 1 in Mathematics

Also, need to identify a generic phentermine 37.5 mg round tablet that is white and blue speckled and scored. No other markings on it. Came from India through Internet Pharmacy. Is there some pill identification wizard only for India manufactured medicines or india physicians desk reference some one could look it up or give me website info.

2007-07-29 18:00:22 · 3 answers · asked by trustno1pp 1 in Medicine

2007-07-29 17:55:20 · 5 answers · asked by CPUcate 6 in Mathematics

2007-07-29 17:52:46 · 4 answers · asked by lvr_fox 1 in Mathematics

24 minutes less time, but had the been 4 miles per hour less, the trip would have taken 24 minutes longer. Find the distance and rate.

2007-07-29 17:47:26 · 3 answers · asked by CPUcate 6 in Mathematics

2007-07-29 17:41:19 · 7 answers · asked by Red Hot 2 in Geography

The reaction occurs in this form:
Zn(s) + Cu(NO3)2(aq) --> Zn(NO3)2(aq) + Cu(s)

-What is the net ionic equation?
-Calculate the # of moles of Cu(NO3)2 present.
-What is the mass of Cu(s) produced by this setup?
-If this reaction is repeated, this time with a large quantity of Cu(NO3)2 solution, how much Cu(s) will be produced?

Thanks! I was stumped by this question...

2007-07-29 17:38:51 · 2 answers · asked by Anonymous in Chemistry

A cylinder has a height of 10 and a surface area of 78pi. Find the radius and volume of this cylinder. (pi=3.14)

I totally forgot how to solve this. Does this require the quadraic formula?

2007-07-29 17:37:45 · 11 answers · asked by laralaii 2 in Mathematics

if the sun is made of gas that explodes on its self explains the glow and heat what or how does the moon shine when it is made of rock? and why does it affect the tide of the sea?

2007-07-29 17:35:15 · 12 answers · asked by Tony F 3 in Astronomy & Space

I wanted to know if we actully use only 10% of our brain or not? some people tell me me we use more than or less than 10% of our brain.

2007-07-29 17:30:18 · 6 answers · asked by flaming_devildog 1 in Other - Science

2007-07-29 17:29:13 · 2 answers · asked by john ruffy t 1 in Chemistry

2007-07-29 17:27:49 · 10 answers · asked by Anonymous in Astronomy & Space

2007-07-29 17:27:02 · 7 answers · asked by Lostinthesound 1 in Geography

if time is infinite, could there really ever have been a beginning. (this is questioning the big bang)

2007-07-29 17:23:28 · 17 answers · asked by ragnarok 1 in Astronomy & Space

If you are familiar with Hoyle the you should know that he and Chandra Wickramasingh the famous mathematician and astrophysist calculated the probabilities of one simple cell coming into existence by chance and they calculated (10 to the 40,000th power) years.
There was another swiss mathematician, Lecomte duNouy, said that any number greater than 10 to the 50th would simply never happen. So to zero cool I pose this statement to you any mathematician worth HIS salt should say evolution works any way. Finally to Aurora Dawn you didn't think of that response yourself either, instead of just wholeheartedly beLIEving what your teachers say. We as christians accept the fact their microevolution (adapting to environment) but NOT macroevolution ( evolving from one species to a totally different species).

2007-07-29 17:21:32 · 4 answers · asked by rialdo 1 in Biology

An insurance company has written 81 policies of $50,000, 480 of $25,000, and 945 of $10,000 on people of age 20. If the probability that a person will die at age 20 is .001, how much can the company expect to pay during the year the policies were written?

Thanks!

2007-07-29 17:21:10 · 4 answers · asked by fubcka 1 in Mathematics

Hey guys, I have a wormhole in my utility room that I'm having trouble getting rid of.

I'm come upon this conclusion by the following observations: Over the last couple of years, I have purchased at least a hundred pairs of socks. Once those socks have entered my house, I have never removed them from my home. Yet somehow my collection has been reduced to about a dozen socks, and not a single one has a match.

I have observed that the discrepancy occurs in my utility room. Whenever I bring socks to the washer, I always put in more socks than I take out. There isn't nearly enough lint on the lint tray to account for this discrepancy, so I have concluded that there must be a wormhole.

I have tried various methods of removing the wormhole, but none have succeeded. If anyone can help, it would be much appreciated.

2007-07-29 17:20:49 · 4 answers · asked by David H 1 in Physics

Can this possibly be explained by science?

2007-07-29 17:19:09 · 7 answers · asked by Anonymous in Other - Science

Need this plz

2007-07-29 17:17:01 · 7 answers · asked by Lostinthesound 1 in Geography

y = 2x2 - 10x - 1

y = 4x2 + 12x + 9

y = x2 + x + 1

y = x2 -5x + 4

2007-07-29 17:14:52 · 2 answers · asked by Anonymous in Mathematics

In the 1960's and 70's, NASA sent 6 manned missions to the moon. This is absolute fact, but as is hideously apparent on these forums, tabloid reporting has convinced far too many people that the Moon Landings never happened.

Sadly, no telescope on Earth, and not even the Hubble have resolutions high enough to allow viewing of the artifacts left on the moon. Is there anything orbiting the moon that can actually take pictures of the landing sites? If so, is there any way to convince the people operating the orbiters to photograph or record the Apollo sites so we can shut these conspiracy mongers up once and for all?

2007-07-29 17:13:46 · 13 answers · asked by aarowswift 4 in Astronomy & Space

just in case i get attacked by one, im trying to prepare for a raptor invasion/attack

2007-07-29 17:11:46 · 13 answers · asked by Trevor 2 in Zoology

potassium bromide in sulfuric acid
hydrogen bromide in sulfuric acid

2007-07-29 17:10:34 · 2 answers · asked by Anonymous in Chemistry

I am reviewing for next year and wanted some help (This is NOT homework, because nobody is making me do it and I am not getting a grade for it, so do not feel wrong or like you are helping me cheat on anything because you are not.

Okay lets get too it.

#1
There is one in this problem and it asks what the area of the shaded region is.

The outer area (the shaded part) has the top (3x+2) and the right side (x+1) the inside(not-shaded) is (3x) the top and the side is (x).

What is the area of the shaded area.

A 3x+2
B 5x+2
C 3x^2+5x+2
D 6x^2+5x+2

I am sorry it is kinda confusing but please try and by the way I got B using foil and some subtracting.

The next one has me stumped, "Which expression represents the product of 3 consecutive even integers,the first of which is 2x.

F 6x+6
G 2x^3+6x^2+4x
H 8x^3+8x^2+8x
J 8x^3+24x^2+16x

Thank you

2007-07-29 17:07:35 · 5 answers · asked by fred 3 in Mathematics

You would think after being hit with hurricanes and tornados so many times per year, that the houses would be built a little sturdier...

2007-07-29 17:06:08 · 6 answers · asked by Tri-State Pleasure Parties 2 in Weather

2007-07-29 17:04:59 · 6 answers · asked by Lostinthesound 1 in Geography

ever heard that if bees become extinct humane race will too? i want to know the reason for this. thanks

2007-07-29 17:03:55 · 4 answers · asked by Eltohn 2 in Zoology

2007-07-29 17:02:17 · 3 answers · asked by ? 6 in Weather