Science & Mathematics - 25 October 2006

The independent events A, B are such that P(A) = 0.4 and P(A U B)=0.88. Find

a) P(B)

b) the probability that either A occurs of B occurs but NOT both

2006-10-25 16:35:50 · 2 answers · asked by Anon 2 in Mathematics

2006-10-25 16:35:38 · 8 answers · asked by The Apostle 2 in Engineering

if you could find a picture and explain to me where it is on there that would be awesome!! im doing a 3-d cell project so any help would be great.

2006-10-25 16:32:19 · 2 answers · asked by taco 3 in Biology

this weight.
A. Calculate the power produced in lifting this weight to that height.
B. Calculate the potential energy of this weight at the maximum height
C. Calculate the kinetic energy of this weight just before impact on the ground.
D. Calculate the velocity of this weight just before impact.
any help with these will be greatly appreciated.

2006-10-25 16:31:38 · 4 answers · asked by j a 1 in Physics

how do I solve


(2/x-2) = (x/x-1) - 2

2006-10-25 16:30:43 · 7 answers · asked by ctjarig 1 in Mathematics

Just want to see if my answers are right, took a second stab at it and this is what i got.

here was the question.

Find the equation of plane including the line r(t) = (2,1,2) + t(1,-1,1) and perpendicular to the line s(t) = (1,-1,2) + t(-1,0,1)

My answer:

find a point on r(t):
r(0)=(2,1,2)

Find a point on s(t):
s(0)=(1,-1,2)

then:
1(x-2) -1(y-1) +2(z-2) = 0 Simplify

answer:

x-y+2z = 5

*do i have to use the points r(0) and s(0)??

Thanks

2006-10-25 16:29:55 · 2 answers · asked by Anonymous in Mathematics

2006-10-25 16:29:47 · 6 answers · asked by Anonymous in Mathematics

2006-10-25 16:27:46 · 7 answers · asked by just curious 4 in Zoology

log(base 4)x=5/2

2006-10-25 16:22:48 · 3 answers · asked by Lauren 1 in Mathematics

2006-10-25 16:20:27 · 12 answers · asked by Anonymous in Biology

2006-10-25 16:19:58 · 11 answers · asked by misdmeaimagain 1 in Chemistry

2006-10-25 16:19:05 · 17 answers · asked by volunteertex 1 in Mathematics

2006-10-25 16:18:06 · 10 answers · asked by Female 4 in Biology

A ball having a mass of 150 g strikes a wall with a speed of 5.2 m/s and rebounds with only 50% of its initial kinetic energy. (a) What is the speed of the ball immediately after rebounding? (b) What is the magnitude of the impulse on the wall from the ball? (c) If the ball was in contact with the wall for 7.6 ms, what is the magnitude of the average force on the ball from the wall during this time interval? Can you explain how you get your answers?

2006-10-25 16:17:40 · 1 answers · asked by Anonymous in Physics

Liquid stinks. How to get rid of odor?

2006-10-25 16:16:10 · 11 answers · asked by magplex 1 in Chemistry

Side AB and AC of triangle ABC are produced in P & Q respectively. Bisectors of exterior angle CBP and BCQ meet at O. Show that AO bisects angle BAC.!!!!

2006-10-25 16:14:52 · 3 answers · asked by Anonymous in Mathematics

2006-10-25 16:12:58 · 2 answers · asked by Anonymous in Mathematics

gas prices went down 10% last year and then rose 20% this year. over the two years, gas went up what percent?

2006-10-25 16:12:44 · 9 answers · asked by woodaka2004 1 in Mathematics

Science is limited...
the best they can come up with is tiny atoms and electrical charges...
carbon!
The universe zoomed out 10 to the 20th power...looks alot like a cell zoomed up to 1 micron...am I onto anything? besides the fact that science is man made.

2006-10-25 16:11:56 · 7 answers · asked by Mr.RIGHT 2 in Physics

Knowing that the universe is not infinite and the ever increasing sophistication of optical telescopes.Is it a future possibility that eventually we will only see empty space beyond the outer limits of the universe

2006-10-25 16:10:46 · 12 answers · asked by Anonymous in Astronomy & Space

2006-10-25 16:09:22 · 10 answers · asked by ckm44 3 in Other - Science

2006-10-25 16:08:45 · 5 answers · asked by Anonymous in Astronomy & Space

2006-10-25 16:08:39 · 9 answers · asked by Anonymous in Earth Sciences & Geology

2006-10-25 16:08:15 · 28 answers · asked by Anonymous in Other - Science

fact or fiction?

2006-10-25 16:07:02 · 9 answers · asked by Anonymous in Chemistry

2006-10-25 16:05:45 · 0 answers · asked by Anonymous in Biology

Why doesn't auxiliary hair grow as long as scalp hair?

2006-10-25 16:05:43 · 2 answers · asked by pantera 2 in Other - Science

2006-10-25 16:04:56 · 11 answers · asked by mlvolz@verizon.net 1 in Mathematics

The universe is and has been expanding outward rapidly for quite some time now. Surely there is only so much room for expansion right? Is there an end point of which expansion is no longer possible? What are the possible outcomes of this scenario?

2006-10-25 16:01:51 · 10 answers · asked by CarloS 2 in Astronomy & Space

2006-10-25 16:01:02 · 4 answers · asked by bigballaxsalvy 1 in Zoology