Science & Mathematics - 30 October 2007

2007-10-30 10:41:39 · 5 answers · asked by Anonymous in Astronomy & Space

simplify

(radical sign) -4/7

2007-10-30 10:40:27 · 4 answers · asked by Anonymous in Mathematics

2007-10-30 10:38:52 · 6 answers · asked by pamoberst 2 in Medicine

solve the equation...
(3(x+2) -3) / 3 = 6

in word terms: 3(x+2) divided by three and equal to six

2007-10-30 10:37:06 · 6 answers · asked by Anonymous in Mathematics

Find the vertex, focus and directrix of each parabola below.

(1) y^2 + 12y = -x + 1

(2) (x + 4)^2 = 16(y + 2)

2007-10-30 10:30:10 · 1 answers · asked by Anonymous in Mathematics

We did a lab where we put startch in a zip lock bag and iodine in a Beaker. we but the startch in the beaker and left it for an hour. after that the startch turned black.


So these are the Questions and please explain im so confused.

Based on your observations which substance moved. the iodine or startch?


How did you determine this


What if you did the oppisite?>

2007-10-30 10:26:37 · 1 answers · asked by That/Cool/Person 2 in Biology

show work

2007-10-30 10:26:27 · 3 answers · asked by Goddess Allure 2 in Mathematics

2007-10-30 10:25:47 · 2 answers · asked by rick m 1 in Biology

How many known moons orbit Jupiter?
a. 7
b. 16
c. 10
d. 17

2007-10-30 10:25:19 · 4 answers · asked by Anonymous in Astronomy & Space

and I stripped naked, except for underwear, mittens, socks, shoes and a hat.

would I get hypothermia before getting frostbite?

2007-10-30 10:24:57 · 3 answers · asked by bovinotarian 2 in Medicine

4 cesium I have these numbers.

6.2E-7 meters: 1.66E-20 Joules

With this how do I convert wavelengths to frequencies
My instructor told me to use f=v=c/lambda where c is the speed of light.
Can you guys b more specific and tell me exactly what to plug in where n stuff. THX ALOT

2007-10-30 10:23:33 · 2 answers · asked by Dhoopy 3 in Chemistry

Ok...Chem 1 honors stuff here...So we are doing half lives and crap like that. Well I need to find the average of the first five on my graph. And I dunno how to do that. How do I do it?

2007-10-30 10:22:47 · 2 answers · asked by Anonymous in Chemistry

2007-10-30 10:22:34 · 4 answers · asked by Lana 1 in Biology

2007-10-30 10:22:33 · 4 answers · asked by Jamie E 1 in Biology

2007-10-30 10:19:53 · 2 answers · asked by Anonymous in Geography

I need help with the analysis questions. does anyone have the answers. i really need help!

2007-10-30 10:17:30 · 3 answers · asked by Katie B 1 in Biology

What would the balanced reaction be for 3-nitroaniline + HCl?

O2NC6H4NH2 + HCl ---> ? + H20?

2007-10-30 10:16:45 · 1 answers · asked by Karus 3 in Chemistry

My boyfriend has the prettiest blue eyes and I want my kids to have them too instead of my boring brown ones. Is blue more dominant over brown or not?

2007-10-30 10:15:54 · 5 answers · asked by Anonymous in Biology

I once thought I read that we can now look into a telescope and and almost look back on how the universe began because of time etc. how is this done? Surely the beginning of the universe was a long time ago.....was I dreaming?

2007-10-30 10:11:30 · 6 answers · asked by Anonymous in Astronomy & Space

Problem:
Suppose that a and b are coterminal angles. Also suppose that c and d are coterminal angles. Is it true that a + c is coterminal with b + d. If true it needs to be proven. If not it needs a counterexample.

Im not sure what is meant by this exactly.

2007-10-30 10:11:18 · 3 answers · asked by Anonymous in Mathematics

2007-10-30 10:09:38 · 6 answers · asked by aj.moonstar 2 in Medicine

2007-10-30 10:09:36 · 4 answers · asked by basheen b 1 in Earth Sciences & Geology

Can someone please help and do the problems to 2.1 will be apreciated, i will become your fan on yahoo or any other website you would like me too. i will rep you on youtube or anything like that. please help.
Link is below for the site the problems are thier. page: 19, problems 2.1, a simple model of the atom.

http://books.google.co.uk/books?id=ibFdfzSOdHYC&pg=PP3&dq=chemical+ideas&sig=jl45aCyV5xUAaKwm_a8mkRvoNM4&vq=%22Chemical+Ideas%22#PPA19,M1

2007-10-30 10:08:42 · 1 answers · asked by help 2 in Chemistry

2007-10-30 10:08:36 · 31 answers · asked by DJared 2 in Other - Science

females don't have Y-DNA
Male's have Y-DNA and M+Dna but only pass on Y-DNA

2007-10-30 10:02:06 · 6 answers · asked by court_billy01 1 in Biology

Science ?s suck!

2007-10-30 10:01:20 · 1 answers · asked by Anonymous in Chemistry

Pedigree analysis

Biochemical analysis

Somatic cell genetics

Behavioral analysis

Karyotyping

2007-10-30 09:59:52 · 6 answers · asked by saguaronest 2 in Biology

compare the knowledge of DNA and proteins. include information on discovery, function, and medical innovations.

2007-10-30 09:58:17 · 4 answers · asked by krisden 2 in Biology

2007-10-30 09:57:44 · 3 answers · asked by 2Fast2Lose 1 in Physics

An analysis of an unknown compound found it contained 39.86 grams potassium, 28.04 grams chromium and 57.10 grams of oxygen.
Find the empirical formula.

My answer: K34Cr18O119
Can it be simplified? Is it possible I did the problem wrong?

Thanks so much!

2007-10-30 09:57:21 · 1 answers · asked by Anonymous in Chemistry