Science & Mathematics - 9 September 2007

can anyone name all the numbers with even factors from 1-200 pls

2007-09-09 09:54:12 · 3 answers · asked by billy j 1 in Mathematics

Then what do you recomend to use instead of animals???

2007-09-09 09:53:00 · 10 answers · asked by sahar k 1 in Agriculture

a) stored under oil
b)stored under water
c)used as lead in pencil
d)used as the metal in domestic light bulb
e) used as the gas in domestic light bulb

2007-09-09 09:52:42 · 7 answers · asked by :) 1 in Chemistry

Graph a line through origin that is parallel to x+y=10

2007-09-09 09:51:25 · 2 answers · asked by hintzruby 1 in Mathematics

Find the center (h,k) and radius (r) of the circle. Also, find the intercept.

2(x-3)^2 + 2y^2 = 8

I'm able to answer this question if it didn't have 2(x-3)^2 in it.

Help?

2007-09-09 09:49:34 · 1 answers · asked by labelapark 6 in Mathematics

My son is doing a project on dropping objects. He needs to know what affects dropping objects and how.

2007-09-09 09:49:25 · 4 answers · asked by Lawrence O 2 in Physics

cotan(in trigonomatry)
cotan=b/a
I have this calculator
http://www.zibi.pl/grafiki/produkty/FX-82MS-_455.jpg

2007-09-09 09:43:47 · 2 answers · asked by Anonymous in Mathematics

i have some science homework to find and learn the definitions of some words, one being molecule,
and all the definitions i have already found
(in dictionary/ on internet) are really complicated!

please can someone give me a simpler definition of molecule?
thanks

(ive just started yr10)

2007-09-09 09:43:33 · 2 answers · asked by Anonymous in Chemistry

I'm coming up with the wrong answer and I don't knwo why.

10.13 m/s= (3ft/1m)(1 mi/5280ft)(60s/1hr)
Meters, seconds, and feet cancel out leaving mph, but I'm getting something else.

2007-09-09 09:41:13 · 3 answers · asked by Anonymous in Physics

ALUMINUM (AL)

2007-09-09 09:40:33 · 3 answers · asked by jk 1 in Chemistry

Astronomically, can Steady State Theory and the Big Bang Theory be combined using Xeno's Paradox?

2007-09-09 09:39:31 · 4 answers · asked by Anonymous in Astronomy & Space

6^-9 * 6

simplify this...

I feel like a moron with the simple things these days... someone please help me out! thanks!

2007-09-09 09:38:53 · 7 answers · asked by Doodlebug 4 in Mathematics

2007-09-09 09:37:39 · 5 answers · asked by Anonymous in Mathematics

Describe the pattern in this sequence:

200, 202, 206, 212

Now I know that you add the first number with 2, and then the second with 4 and the third with 6, which is adding them with even numbers but I just can figure out how to describe it!!! Its driving me insane! Please help! Thanks!

2007-09-09 09:31:23 · 4 answers · asked by Anonymous in Mathematics

3(1 - d) = 2 - (2d + 4)
Answer: d= -3

4(2s+1) - 5 = 6s
Answer: s= 1/2 or 0.5

3(q + 2) + q = 2q + 5
Answer: q= -1/2 or -0.5

Are they correct?

2007-09-09 09:29:29 · 3 answers · asked by Agata 5 in Mathematics

i.e : the tide ..gravity etc

2007-09-09 09:25:51 · 15 answers · asked by Anonymous in Astronomy & Space

1. There are four naturally occurring isotopes of the element Copper. The perent abundance of each is :
^60 Cu= 4.31%
^63 Cu = 83.76%
^65 Cu = 9.55%
^66 Cu = 2.38%

Calculate the average atomis mass of copper: (please show work so i cant figure out how it was done thank you so much!!!)

2. Determine average atomic mass of the following mixtures of isotopes:

A. 80.0 % ^127 I,
17.0 % ^ 126 I,
3.00 % ^128 I

B. 95.00% ^14 N
3.00% ^15 N
2.oo% ^ 16 N

2007-09-09 09:25:34 · 3 answers · asked by Anonymous in Chemistry

2007-09-09 09:25:12 · 6 answers · asked by M. E 2 in Mathematics

Equal amounts are invested at 6%, 7%, and 8% annual interest. If the three investments yield a total of $2,037 annual interest, find the total investment.

Please help me, I don't know how to begin. I would really appreciate it.

2007-09-09 09:24:26 · 2 answers · asked by Anonymous in Mathematics

2007-09-09 09:24:20 · 10 answers · asked by Steve G 3 in Engineering

2007-09-09 09:21:30 · 1 answers · asked by Anonymous in Mathematics

And I'm asking for specific SPECIES, not names of broad groups. I'll give a thumbs down to anyone that does give me a name of a BROAD GROUP!

2007-09-09 09:20:50 · 2 answers · asked by Anonymous in Medicine

2x - y + 3z = 2
3x + 2y - 4z = 5
x - 4y + z = -10

2007-09-09 09:19:15 · 4 answers · asked by Anonymous in Mathematics

You may choose to have, or omit, any combination of the following on your hamburger: mustard, ketchup, onion, pickle, tomato, relish, mayonnaise, and lettuce.

2007-09-09 09:17:40 · 7 answers · asked by Cinnamon79 5 in Other - Science

I really need help with these. How would I do...

Given polynomial and one factor, find remaining factors

(x-2) is the factor

4x^3 - 17x^2 + 9x + 18

and now in the other one im given one zero and i need to find them all

the zero is (1)

p(x)= x^3 + 2x^2 - 13x + 10

2007-09-09 09:16:07 · 1 answers · asked by hidetherumm 2 in Mathematics

Ok so technically engineers aren’t exactly the best writers, being more science oriented. So my question to you is why should engineers be better writers? Of course we know they need to get their thoughts across through writing, or a bridge can collapse killing millions, but what are some other reasons? I will give the best answer to someone with a really thorough and detailed explanation.

2007-09-09 09:13:28 · 6 answers · asked by surftaco400 1 in Engineering

Here's the problem: At a sports training camp, participants run three miles a day. Before running, they record their resting heart rate. After running, they record their time, heart rate, and describe how they feel about their time. Which of the follwing is not a quantitative variable?
1. resting heart rate
2. time
3. heart rate after running
4. how they feel about their running time

Thanks in advanced to anybody who answers me, best answer gets 10 points

2007-09-09 09:10:29 · 4 answers · asked by Anonymous in Mathematics

simplify square root 162

2007-09-09 09:08:39 · 4 answers · asked by confused 4 in Mathematics

A custom built pool measures 10.0 ft long by 50.0 ft wide. The pool has a constant depth of 12 ft.The contractor filled the pool with 37,500 kg of water. You stand 5 ft 9 in, is the water over your head?
(density of water = 1.0g/cm3 1ft = 12 in 2.54cm = 1 inch )
Show work to support your answer

2007-09-09 09:07:51 · 2 answers · asked by Vinny L 3 in Engineering

Find the height of a triangle with area of 81 square meters and a base of 9m.

2007-09-09 09:01:14 · 5 answers · asked by zerokun4 1 in Mathematics