Science & Mathematics - 12 September 2007

1) x to the power of 3 + x to the power of 2 + x

So since x is subtitued by 1,is it..

1 * 1 * 1 + 1* 1 + 1 which would equal to = 3

2007-09-12 09:11:53 · 9 answers · asked by Jessie 1 in Mathematics

can someone please explain as much as they can how to do these mathematical and algebraic sentences?

1.) 2y-1=1
2.)z/3 > 1
3.)a+2 not equal to 7
4.)x/4+2<5

2007-09-12 09:07:48 · 5 answers · asked by Anonymous in Mathematics

My husband and I disagree.
I think yes.
I was watching mythbusters and they were testing it and I didn't catch the last part of it.I fell asleep or got busy doing something else.

Thank You!

2007-09-12 09:07:21 · 10 answers · asked by Bobbie 5 in Weather

every single take off?

2007-09-12 09:05:00 · 4 answers · asked by Hanna 2 in Other - Science

Distribute the following:  3(2x - 5).

2007-09-12 09:04:37 · 11 answers · asked by Anonymous in Mathematics

YOu would think with all of the brain pool they have that someone would figure a way to keep it intact

2007-09-12 09:02:42 · 6 answers · asked by Hanna 2 in Astronomy & Space

apparently, thst happened to my friend but i don't see how it's possible..

2007-09-12 09:02:38 · 1 answers · asked by taixsantixlove 3 in Other - Science

10:00. When will Lee meet Mark?

2007-09-12 08:56:24 · 5 answers · asked by V for Vindicated 1 in Physics

2007-09-12 08:55:01 · 11 answers · asked by gainzey 1 in Other - Science

i dont have a good teacher.he says one thing and acutally confuses himself!he makes no sense so i need someone to explain these 4 questions to me!thankyou sooo much i really do appreciate your help!


1.)The difference between a number and 3 is not 6.

2.)The quotient of a number and 10 is 5.

3.)2 less than 3 times a number is less than or equal to 11.

4.)The perimeter of a square is 24 cm.Find the length of one side.

2007-09-12 08:54:20 · 7 answers · asked by Anonymous in Mathematics

1) For the following masses and volumes calculate the density in g/cm3.
a) 452.1g and 392cm3
b) 0.14lb and 125 ml
c) 1.01kg and 1000cm3
d) 225mg and 2.51ml

2) Calculate the density of 784.6g of acetone with a volume of 1000ml .

3) Perform the following conversions showing the conversion factors used.
a) 8.43cm to mm
b) 2.41x10^2cm to m
c) 294.5nm to cm
d) 404.5m to km

4) Perform the following conversions showing the conversion factors used.
a) 908oz to kg
b) 12.8l to gallon
c) 125ml to quarts

2007-09-12 08:53:05 · 1 answers · asked by Anonymous in Chemistry

2007-09-12 08:52:32 · 5 answers · asked by LuvPnk 1 in Astronomy & Space

Look at these pictures;

http://www.hq.nasa.gov/alsj/a11/AS11-40-5924HR.jpg

http://www.hq.nasa.gov/alsj/a11/AS11-40-5922HR.jpg

http://www.hq.nasa.gov/alsj/a17/AS17-149-22852.jpg

What are these two things?

1. On the upper right of the ascent stage aft panel, inboard of the RCS thrusters, the helical, cone-shaped thing, like a little Christmas tree.

2. Same thing as #1, but on the front panel, inboard of the upper corner of the commander's window. In the third picture, it's casting a clear shadow onto the front panel.

3. On the lower left of the ascent stage aft panel, it looks like a hot dog bun stuck to the skin. I thought it might be a patch, but they all have it.

2007-09-12 08:51:11 · 3 answers · asked by alan_has_bean 4 in Astronomy & Space

Suppose the real valued function f is Riemann integrable, but not continuous, over [a,b]. Then, does there exist some c in (a,b) such that f(c) = [Integral (a^b)f(x) dx]/(b -a)?

I tried to prove this based on the fact that the set of discontinuities of f in [a,b] has Lebesgue measue 0, but couldn't come to a conclusion yet.

2007-09-12 08:50:29 · 1 answers · asked by Steiner 7 in Mathematics

Hi! Here's an example of what I mean:

3^x = 2^(x-1)

I took the log of each side, yielding:

log 3^x = log 2^(x-1)

OR:

x log 3 = (x-1) log 2

But what do I do from here?!?!?!? PLEASE HELP! I'll pick a best answer TODAY!

2007-09-12 08:46:58 · 6 answers · asked by Anonymous in Mathematics

Why is it not an equally dispersed sheet in the sky? Either overcast or clear all the time?

2007-09-12 08:46:17 · 9 answers · asked by Anonymous in Weather

I have just been washing up and noticed the water went down the plug clockwise and remembered someone once told me if you live in Australia it goes down anticlockwise?is this true? sad or what? but football is on!!!!!!!!!!

2007-09-12 08:45:40 · 7 answers · asked by marg4kizz 3 in Earth Sciences & Geology

Using this equation:

4As + 3O2 ---> 2As2O3

What is the maximum amount of As2O3 which could be produced by reacting 10.0 grams of As with excess oxygen?

2007-09-12 08:44:40 · 3 answers · asked by Anonymous in Chemistry

A can of mineral wter contains 345 mL of water. How many molecules of water does the can contain? ( water= 1.00 g/mL)

2007-09-12 08:43:14 · 2 answers · asked by Anonymous in Chemistry

Looking at when nurses took on medical care, as opposed to basic nursing, e.g. giving injections, instead of doctors.

2007-09-12 08:42:53 · 3 answers · asked by Anonymous in Medicine

Cr2(C2O4)3 is the formula

2007-09-12 08:41:00 · 2 answers · asked by Anonymous in Chemistry

there are 30 kids in the class
2 are 130 to 140cm tall
15 are 140 to 150cm tall
12 are 150 to 160 cm tall and
1 is 160 to 170cm tall

so the tally is 2, 15, 12, 1

what on earth is the "frequency"???

10 pts if you can help the little shite, i mean he should bl**dy pay attention but i dont want him to end up thick! thank you

2007-09-12 08:40:27 · 12 answers · asked by Anonymous in Mathematics

2x+1/x-3
when i put this in the caluclator the graph is the isotope or the line that the graph can not reach is 3. That means that the two curve lines sould move to the right but when i do that it is not happening. What am i doing wrong.

2007-09-12 08:39:56 · 2 answers · asked by fvsdf s 2 in Mathematics

Sigma (1 + sin n^2)/ sqrt n , n = 1, to 00

Does this series converge or not?

I am stuck on this one and I am not convinced of the previuos answer so I ask again hoping there are more mathematicians online. Thanks in advance.
Does the comparison test work here? If so, what is the inequality.
I know -1 < = sin n^2 < = 1
0 < = 1 + sin n^2 < = 2
making our an < = 2/ sqrt n, but that is useless. I am trying to get a uselful comparison, can someone help?

2007-09-12 08:35:01 · 5 answers · asked by Anonymous in Mathematics

IN RELATION TO OTHER PLANETS
thanks

2007-09-12 08:29:17 · 5 answers · asked by Anonymous in Astronomy & Space

2007-09-12 08:27:20 · 4 answers · asked by Ram Up 1 in Earth Sciences & Geology

And how did someone split it?

2007-09-12 08:27:08 · 5 answers · asked by Chloelouise 2 in Physics

I need to convert the two numbers to scientific notation:
HELP PLEASE.

3,900,000,000
0.00000418

2007-09-12 08:26:22 · 5 answers · asked by countess_von_katz 2 in Mathematics

Take a 100g bar (or other size perhaps) remove the tear-away section and extract the chocolate. Enjoy its chocolatey richness (or whatever else one might do with it.) Then, put the open end of the prism of cardboard in your mouth and suck. The far end flap vibrates, making a pretty good duck quack sound. Very loud too. My Fruit & nut carton makes a more muted sound.

2007-09-12 08:25:50 · 7 answers · asked by Anonymous in Other - Science

Something greater than 7 digits will be interesting!
But u'll have to give a genuine answer along with a proof or the source from where u got it. I am looking for serious and good answers so NO SPAM PLEASE!

2007-09-12 08:25:20 · 6 answers · asked by Bibo 1 in Mathematics