Science & Mathematics - 2 July 2007

In a sample of 154 cartridges from a certain lot, 38 were found to be contaminated and 116 were "clean". If you randomly select 4 of these 154 cartridges, what is the probability that all 4 will be clean?
The probability that all four cartridges will be "clean" is: ______ (round to four decimal places).

2007-07-02 13:41:37 · 2 answers · asked by Anonymous in Mathematics

2007-07-02 13:41:25 · 2 answers · asked by thepaladin38 5 in Mathematics

Solve for y...

y/(p-q) = y/(p+q)

thanks

2007-07-02 13:37:55 · 7 answers · asked by Anonymous in Mathematics

It is a 5 mg patch. Can people with a good sex drive still use it?

2007-07-02 13:37:11 · 7 answers · asked by aintlifegrand 4 in Medicine

parallel lines have equal slopes. Two pairs of the line indicated by the given points are parallel. Give the problem numbers of the parallel lines

_____&_____ , ______&_____






Also...

Perpindicular lines intersect to form right angles.(if they are not vertical or horizontal, then the product of the slope equals
-1.) Two pairs of the lines indicated by the given points are perpindicular lines;

_______&_______ , ________&_______


remember* i will choose the best answer not the first one

2007-07-02 13:32:16 · 3 answers · asked by joeyowens81 1 in Mathematics

All componets are 12VDC and an added circuit that turns on when the other turns off powers a buzzer of 10mA which I don't know the resistor for either so help would be appreciated.

2007-07-02 13:26:56 · 4 answers · asked by leolaushman 1 in Engineering

I'd like to read about evolution and how close it is to becoming a law versus a theory. But I'm an English major, and science was never my strong suit. Recommendations?

2007-07-02 13:25:05 · 4 answers · asked by Anonymous in Other - Science

-2/x=3/x+2

3+1/x-2 = 2x-3/x-2

2007-07-02 13:25:00 · 5 answers · asked by linda c 1 in Mathematics

y/m + (y-1)/n = (y-2)/mn

solve for y

Thanks if you can help

2007-07-02 13:24:06 · 6 answers · asked by Anonymous in Mathematics

Just wondering because I know that they put the filtered salt back into ocean.

2007-07-02 13:21:34 · 8 answers · asked by adddictedtomonsterenergy 3 in Earth Sciences & Geology

a) CO and H2O b). CO2 and H2O c)CO2 only d)H2O only e. none of these

2007-07-02 13:19:51 · 5 answers · asked by staylor8319 1 in Chemistry

1. a+b/2 = a+4/a - solve each equation

2.4/3n + 2/n+1 + 2/ n squared + n . reduce to lowest terms

3.use product and quotient rule to simplify --square root of 27/16

2007-07-02 13:18:18 · 1 answers · asked by linda c 1 in Mathematics

How in the hell do I factor: (show work + explaination)

9y²-(2x-y)²=

2007-07-02 13:17:17 · 3 answers · asked by Anonymous in Mathematics

also, PO4 3- as P

2007-07-02 13:16:53 · 2 answers · asked by ta2dpilot 6 in Chemistry

2007-07-02 13:15:50 · 3 answers · asked by Anonymous in Mathematics

domian of y=tan5x

2007-07-02 13:12:50 · 3 answers · asked by specialdao 2 in Mathematics

2007-07-02 13:07:35 · 8 answers · asked by Kelly 3 in Zoology

Im curious to how and why objects such as glass resonate at a certain frequency and is oblivious to any other. Also in relation, how does a radio receiver pick up certain frequencies by resonating at the same frequency? Thanks

2007-07-02 13:00:12 · 8 answers · asked by Anonymous in Physics

ok i cant seem to set this problem up correctly...
A fence 8ft tall runs parallel to a tall building at a distance 4 ft from the building. What is the length of the shortest ladder that will reach from the ground over the fenceto the wall of the building?

so what i am trying to do is get the minimum value of the equation i am trying to set up...

2007-07-02 12:38:14 · 5 answers · asked by Anonymous in Mathematics

2007-07-02 12:23:55 · 8 answers · asked by Mopar Maniac 2 in Astronomy & Space

Because there's less intervening atmosphere to see through.

Does seeing work that way?
Can it be, say, 1" for a celestial body and 0.5" for a tree a few hundred yards away?

Assuming your telescope is large enough that Dawes limit doesn't push in of course.

Is Airy disk size directly proportional to to airmass? something like if 1 airmass = 2" then 10 airmasses= 20"?

2007-07-02 12:23:48 · 5 answers · asked by anonymous 4 in Astronomy & Space

2007-07-02 12:22:48 · 7 answers · asked by jonathan 2 in Earth Sciences & Geology

i know its an improper integral, but i ended up with:

lim ln 1 - ln a (as a approaches zero)

and i'm pretty sure that doesn't exist. help?

2007-07-02 12:21:19 · 3 answers · asked by Kaila G 3 in Mathematics

What is the contribution margin in the following example?

a. Revenues: $1,200,000

b. Variable costs $ 215,000

c. Fixed costs: $ 1,000,000
What is the contribution margin percentage?

2007-07-02 12:18:28 · 3 answers · asked by Eugene D 1 in Mathematics

just wondering

2007-07-02 12:15:45 · 3 answers · asked by macgyver 1 in Engineering

2007-07-02 12:15:07 · 2 answers · asked by ammr1993@sbcglobal.net 1 in Medicine

(y/m) + (y/n) = p

solve for Y

2007-07-02 12:13:35 · 4 answers · asked by Anonymous in Mathematics

just wondering

2007-07-02 12:12:47 · 3 answers · asked by macgyver 1 in Engineering

good info

2007-07-02 12:08:38 · 3 answers · asked by Experimental876 4 in Astronomy & Space

Given a lat. long. I need air props. and altitude curves
(Troposphere, strato...ect....for chemical burn/oxidation info)

2007-07-02 12:07:12 · 1 answers · asked by Experimental876 4 in Earth Sciences & Geology