Science & Mathematics - 17 December 2006

2006-12-17 08:37:53 · 9 answers · asked by Anonymous in Mathematics

ok we are the victoms of a stupid math teacher..we can use a calculater but not just find all of the awnsers with it ..we must use a arithmatic formula..
this is the problem:
A woman begins working for a salary of 30,000 per year and gets a $2,000 raise each year. How many years must she work in order for her total earnings to reach 1 million dollars?

We think that it might be 1000000=n(30,000+an)/2

THIS IS DUE TOMORROW SO PLEASE HELP US>...this is not a joke.......

2006-12-17 08:37:06 · 2 answers · asked by Leah 1 in Mathematics

a) f(x) = (3x)/(x-2)

b) f(x)= (x-5)/(x^2+6x+5)

In problem "a" I tried solving for x, but when I graphed it the answer didn't seem to be right (according to the graphing calc.).

In problem "b", you can't solve for x because the of the x^2 (I think?), so I tried the other method, which involved dividing all the numbers by the highest power of x. The result left me somewhat confused. Can anyone explain this please? x_x

2006-12-17 08:35:15 · 7 answers · asked by Derek 4 in Mathematics

Every other sound to my knowledge echos so why not a quack from a duck?

2006-12-17 08:34:03 · 10 answers · asked by Jared C 1 in Zoology

Hey

I am doing this project and i jus wanna know if there is any new research being done on Chloroplast...or any new info about it that u guyz know of?

2006-12-17 08:33:30 · 3 answers · asked by Anonymous in Biology

What would be the area and perimeter of the following 2 properties.
*Begin at stake 1, go right 180 ft to stake 2, turn right, go 120 ft, turn right and go 60 ft to stake 3, go straight 60 ft, turn left go 60 ft, turn left and go 60 ft to stake 4, turn right, go 60 ft, turn right ft to stake 5, go straight 120 ft, turn right and go 90 ft to stake 6, turn left, go 30 ft, turn right and go 90 ft to stake 7, turn right, go 90 ft, turn left and go 60 ft, returning to stake 1
*Begin at stake 1, go right 100 ft to stake 2, turrn right, go 50 ft, turn right and go 25 ft to stake 3, turn left, go 25 ft, turn left and go 75 ft to stake 4, turn right, go 100 ft, turn right go 100 ft to stake 5, go straight 75 ft to stake 6, turn right, go 75 ft, turn left and go 50 ft to stake 7, turnn right go 100 ft turn right and go 75 ft, returning to stake 1.

2006-12-17 08:32:27 · 5 answers · asked by danielle 2 in Mathematics

there are 11 outcomes in the sample space. Explain how they could both be correct.

2006-12-17 08:30:05 · 3 answers · asked by Eugene D 1 in Mathematics

2006-12-17 08:29:26 · 11 answers · asked by Anonymous in Zoology

This is for bio. I need to know scientifically, not just because they are preserves... I think it has something to do with diffusion, or it should...

2006-12-17 08:28:35 · 5 answers · asked by Rachel 1 in Biology

2006-12-17 08:27:06 · 3 answers · asked by JaJarvis 1 in Chemistry

2006-12-17 08:27:00 · 4 answers · asked by Anonymous in Biology

2006-12-17 08:24:52 · 1 answers · asked by Yaritza C 1 in Mathematics

2006-12-17 08:24:47 · 20 answers · asked by Anonymous in Astronomy & Space

wat is x?
1/x + 2/x + 3/x +...+ (x-2)/x + (x-1)/x = 1986
explain plz

2006-12-17 08:24:27 · 5 answers · asked by Anonymous in Mathematics

Actually I have Pawpaw seeds that could be of the same plant, but Pawpaws are similar to apples in that they need two different types of plants to cross pollinate.

2006-12-17 08:24:16 · 2 answers · asked by Kevin S 1 in Botany

please help me!!!!!!!!!

2006-12-17 08:24:05 · 4 answers · asked by cecile 1 in Chemistry

I need to write a paper about the Fibonacci sequence for Algebra and one of the requirements is to write down the 100th term in the Fibonacci Sequence.

2006-12-17 08:23:07 · 0 answers · asked by mark_10_4 2 in Mathematics

2006-12-17 08:21:10 · 2 answers · asked by Struggling scientist 1 in Botany

[1/t+1] - [1/t-1]

2006-12-17 08:18:28 · 2 answers · asked by highrllr0079 2 in Mathematics

what is the process where both sexes are located on one individual? its a reproduction process. what is an example of an organism that reproduces that way?

2006-12-17 08:17:41 · 8 answers · asked by Anonymous in Botany

2006-12-17 08:16:15 · 2 answers · asked by JaJarvis 1 in Chemistry

scientists were able to make an atom where the negative part was heavier - antimatter. who made this experiment? how did they carry out the experiment? and how long did it last?

2006-12-17 08:15:33 · 4 answers · asked by soccergurl040709 2 in Physics

2006-12-17 08:12:25 · 8 answers · asked by Anonymous in Mathematics

ok im in a basic chem classs and this was the only part of my review i cant figure out. and its really imporant that i know this because we can write all the notes we want on one side of a peice of computer paper. and i looked in all of my notes and in the book where this should be and its not in either of them
but frist what is a ternary ionic compund and what are the rules to name them and write their formulas?
heres the problem
apply the rules for naming and writng fromulas fo ternary ionic compunds
CoSO4_________ Cobalt(II) sulfate______
Ca(OH)2________ Ammonium chloride_______
NaClO3_________ Sliver acetate____________

2006-12-17 08:11:15 · 1 answers · asked by timmy123 2 in Chemistry

2006-12-17 08:10:55 · 5 answers · asked by NjA 1 in Mathematics

Where?!

2006-12-17 08:09:47 · 6 answers · asked by jsfan2510 2 in Mathematics

put these in to y=mx+b form
1) y+2=-x-4
2) y+5=-x-2

2006-12-17 08:07:57 · 2 answers · asked by Anonymous in Mathematics

A toxic subatance deteriorates at a rate such that one-third of it is converted to a non-toxic product every 10 years. How long does it take for less than 10kg of the material to remain from and original amount of 100kg?

2006-12-17 08:06:59 · 6 answers · asked by Leah 1 in Mathematics

I am doing a geometry project, and in it we have to provide a list of geometric shapes that will not tesselate. To tesselate is to cover an entire plane by repeating one shape over and over without overlapping or leaving empty spaces. I already have that circles and pentagons will not tesselate, but i cant think of any more to put on my list.

2006-12-17 08:05:19 · 6 answers · asked by Anonymous in Mathematics

2006-12-17 08:03:13 · 4 answers · asked by ehrlich 6 in Chemistry