Science & Mathematics - 11 November 2006

a place to go?

2006-11-11 23:59:29 · 12 answers · asked by beast 1 in Zoology

I'm just curious. I believed that an bug/ant flew into my mouth before I can stop it, long time ago-don't laugh, I'm serious-and is still there. Every once in awhile, I itch and feel legs, usually of one ant or bug. When does it die? Or how to kill it if possible to stop the itching.

2006-11-11 23:59:20 · 7 answers · asked by Kristen H 6 in Other - Science

I cannot do this question, can someone help me as a just get a silly answer?

The average weekly overtime earnings from a sample of workers last year and this year are:
N workers: 15 and 12
Mean overtime earnings: £3.50 and £4
Standard deviation: £2.95 and £3.05

Construct a 95% confidence interval for the increase in average weekly overtime earnings (assume equal standard deviations)

Thanks

2006-11-11 23:57:55 · 1 answers · asked by joemoran7 2 in Mathematics

things like clearing of forests...

2006-11-11 23:55:40 · 4 answers · asked by Anonymous in Zoology

2006-11-11 23:47:01 · 7 answers · asked by sugalums 1 in Mathematics

Simplify , leaving denominator in factorised form:

(1 divided by (y -2)) + (3 divided by (y squared + y - 6))

It looks alot harder written like that but it's supposed to be like 1 over y-2 and then add 3 divided by y squared + y -6 but i didn't know how to write that!!!!!! If you could please tell me how you got the answer it would be great!!!! thank you!!! Also apparently it's easier if you factorise the (y squared + y -6) bit first.

2006-11-11 23:42:14 · 11 answers · asked by Spinach 3 in Mathematics

2006-11-11 23:41:00 · 20 answers · asked by Lucy in the Sky 2 in Zoology

I just want 2 know what people think!

2006-11-11 23:39:47 · 26 answers · asked by xXx - Twisted Whispers - xXx 2 in Astronomy & Space

I was just thinking of this, anyone any ideas?

2006-11-11 23:37:11 · 8 answers · asked by sparkle 5 in Chemistry

2006-11-11 23:32:03 · 9 answers · asked by Panny F 1 in Mathematics

I want to implement the cirsuit of the electronic digital water meter

2006-11-11 23:29:12 · 1 answers · asked by Anonymous in Engineering

na

2006-11-11 23:22:24 · 10 answers · asked by Nityanand P 1 in Engineering

And if you can: What type of birds migrate?

2006-11-11 23:10:43 · 11 answers · asked by lhague 1 in Zoology

2006-11-11 23:09:46 · 10 answers · asked by Anonymous in Earth Sciences & Geology

2006-11-11 23:09:06 · 5 answers · asked by charu 1 in Physics

2006-11-11 23:07:46 · 7 answers · asked by albie 1 in Botany

2006-11-11 22:59:13 · 1 answers · asked by Anonymous in Biology

2006-11-11 22:53:19 · 5 answers · asked by crazi_gal 1 in Chemistry

2006-11-11 22:53:04 · 3 answers · asked by Double E 1 in Biology

2006-11-11 22:50:50 · 27 answers · asked by Leekkul 1 in Other - Science

1) Major Electronics sells transistor to the US govt. in lots of 1000. The govt. takes a random sample of 10 from each lot, puts them through a rigorous test, and accepts the lot if no more than 3 out of the 10 break down. Major electronics feels certain that at least three-fourths of its transistors will pass the govt. tests. If they are correct, what is the probability that any given lot will be accepted by the govt?
2) In a certain country, 104 boys are born for every 100 girls. In that country what percentage of families with 8 children should have 4 girls and 4 boys?

Do you know how to do it? please help

2006-11-11 22:45:06 · 4 answers · asked by magt_g 1 in Mathematics

i can gt to to 1/cotB = secB but from there i am stuck! please help i have an exam tomorrow!

2006-11-11 22:36:37 · 6 answers · asked by lucy_goose 3 in Mathematics

2006-11-11 22:34:30 · 2 answers · asked by Alexander M 1 in Physics

abstract and introduction and background of the topic itself. or anything that you can suggest and help me the details.where and what to research and references.
attention to all mathematicians and researchers.! your help is badly needed

2006-11-11 22:30:17 · 3 answers · asked by maloumarmalade 1 in Mathematics

1.) A machine produces bolts which are put in boxes. It is known that 1 box in 10 will have at least one defective bolt in it. Assuming that the boxes are independent of eachother, what is the probability that a customer that ordered 3 boxes will get all good bolts?

2.) Suppose that 4% of males are color blind, that 1% of females are color blind, and that males and females make up 50% of the population. If a person ios chosen at random, what is the probability that this person will be color blind?
Can you help in detail....Please

2006-11-11 22:25:49 · 2 answers · asked by PC 1 in Mathematics

i have a report about this, its all about velocity and there are 2 kinds of velocity the uniform velocity and variable velocity. help about this!!11

2006-11-11 22:23:49 · 3 answers · asked by riza joie v 1 in Physics

i have water, metal,people.
i would like 2 more please

2006-11-11 22:19:08 · 16 answers · asked by jayebird 2 in Engineering

3 people have a meal in pub it comes to £30 the waiter takes £10 off each person, takes it to the till and realises he has charged them £5 to much so he takes £5 out the till to give them back and thinks i will make abit myself keeps £2 and gives them back a £1 each so they have only paid £9 each, 3x9=27 plus the £2 the waiter kept = £29 where's the other £1 gone

2006-11-11 22:14:48 · 4 answers · asked by bumble 3 in Mathematics

2006-11-11 22:08:20 · 2 answers · asked by kevin 1 in Astronomy & Space

Yeah, left my textbook at school..anway:
The ratio of boys to girls in a school is 2:3 IF there are 435 students in the school, how many boys and how many are girls?

To make standard concrete, gravel, sand and cement are mixed in the ratio of 5:3:1. I wish to make 27tonne of concrete. How much gravel sand and cement must I purchase?

Please include workin out so I figure the rest out for myself :)

2006-11-11 22:06:51 · 5 answers · asked by Anonymous in Mathematics