Science & Mathematics - 14 September 2007

I need good, long linear and nonlinear questions that form some kind of picture. I don't mean individual equations making their own individual pictures. I mean five equations that form their own lines to come together to make a picture.

Think you could help?

2007-09-14 09:39:10 · 2 answers · asked by Anonymous in Mathematics

two taps A and B can fill a water tank in 9 minutes and 12 minutes. In what time the tank will be full, if B starts working 2 minutes after A starts working?

2007-09-14 09:36:59 · 1 answers · asked by swarnalatha v 1 in Mathematics

... was going on a trip. And on its way back (approx 2 years) it would do a fly by of the moon landing site close enough to take photos, as obviously the flag and equipment would still be there, and there by prove or disprove conclusively the moon landing! Any body know anything about it?

2007-09-14 09:36:52 · 6 answers · asked by ADELE P 3 in Astronomy & Space

the first and second pitches, and the force with which the baseball is hit is the same on both pitches that i can calculate that if the first pitch was hit with an angle of 45 degrees to the ground, that it will go farther than a second hit at an angle of 75 degrees. my question is what happens if the everything is the same for a third scenario, but the speed of the pitch varies. will the ball go farther if the pitch is thrown faster? and does it go farther based on the same proportionality rules as the first two scenarios, or does speed count for more distance, than say angle, and force?

2007-09-14 09:33:21 · 1 answers · asked by Backtash123 1 in Physics

2007-09-14 09:33:01 · 18 answers · asked by Anonymous in Astronomy & Space

what is 5+5??

2007-09-14 09:31:45 · 7 answers · asked by Anonymous in Mathematics

if 2log(x-2y)=log x+log y, evaluate x/y

2) Let f(x)=2x-1 and g(x) = ½ x +3 determine
(f-1 ◦ g) (x)
(g-1 ◦ f-1) (x)

f is raised to the power -1 not minus one

Thank you soooo much

2007-09-14 09:29:37 · 3 answers · asked by tx_bsn_2008 2 in Mathematics

ok now I'm in grade 8 and my math teacher has given use an assinment that I really want to do great in... but i'm stuck and in total I have 50 but I need 100 to pass so if you could help me out with the answers well I try to get them it would be great and the twist is you can only use the numbers 1,4,8 and 9 hope you can help just give me any answer and if I have then I have it and if I don't then you rule and are a savour

2007-09-14 09:28:57 · 3 answers · asked by kelly w 1 in Mathematics

2007-09-14 09:28:30 · 4 answers · asked by jhilgert00 1 in Zoology

did the the chicken come first or did it come fro a dinosaure

2007-09-14 09:26:04 · 8 answers · asked by Anonymous in Zoology

2007-09-14 09:24:32 · 4 answers · asked by beth 1 in Biology

This question is on my sons science test...and I don't have a clue....

2007-09-14 09:19:04 · 5 answers · asked by misstigeress 4 in Mathematics

I hope we do I love the snow.

2007-09-14 09:16:09 · 13 answers · asked by Ruby Tuesday 2 in Weather

I took notes on a video we are watching in class and i missed what continent Rwanda was located in. Could you please help. It's not homework so don't worry!! ( ; It's notes for a big test that's coming up!! Please help asap! Thank you soo much you don't know how much i appreciate it!! Thanks ( ;

2007-09-14 09:15:56 · 10 answers · asked by Anonymous in Geography

√5-√3, 4, √5+√3

2007-09-14 09:13:30 · 2 answers · asked by CelticMoonGoddess 2 in Mathematics

The proportion is: (15/x+2)=(3/5). Solve for X.

Please include the step-by-step procedures too.

2007-09-14 09:10:21 · 4 answers · asked by dana c 1 in Mathematics

Find a formula for the inverse of the function.

y = (e^x)/(1+8e^x)

2007-09-14 09:09:42 · 4 answers · asked by ILuvTaraReid 2 in Mathematics

do you think they exist, and one day we'll be able to find away into them.

2007-09-14 09:08:23 · 12 answers · asked by starflow 1 in Astronomy & Space

After school, I was looking at the sky because I heard a bunch of thunder, and I saw a red cloud coming out from behind a storm cloud. I looked away and looked back a few seconds later, but this time, it was orange. The next time I looked up, it was bright green, and the last time I saw it, it was blue/green.
A teacher said that it was a lightning cloud and that lightning struck straight from it. She made us get to shelter quickly.

I know what I saw, but I don't know what exactly it was. It changed color, but when I came home to look it up, I found nothing that matched what I saw.
Does ANYONE have a clue or a link that could help me out? Thanks!

2007-09-14 09:05:53 · 6 answers · asked by Mary K 3 in Weather

2007-09-14 09:02:50 · 12 answers · asked by Anonymous in Astronomy & Space

I dont really need the answers here but could someone please explain the process in which the question can be done.

let x be a number that is selected randomly from the closed interval from 0 to 1 [0,1]. use your intuition to sign values to:

a) P({x: 0 <= x <=1/3})
b) P({x: 1/3 <= x <=1})
c) P({x: x = 1/3})
d) P({x: 1/2 < x < 5})

2007-09-14 09:02:26 · 2 answers · asked by Anonymous in Mathematics

Install capacitors to reduce humming and a ripple current? Before or after inversion? These are 3,000 watt inverters.

2007-09-14 09:02:09 · 2 answers · asked by smittybo20 6 in Physics

How do I keep ice from building up on the surface, and snow from accumulating on them?

2007-09-14 08:59:11 · 5 answers · asked by smittybo20 6 in Physics

How many blocking diodes would I need to install to prevent backflow and battery drainage? And what Amps?

2007-09-14 08:56:56 · 4 answers · asked by smittybo20 6 in Physics

Can you solve the problems below and explain how you did?

1 - 8x^3 x 3y^2 divided by 6x^2 x 4y^3

2 - (6x divided by 18x^2) ^2

2007-09-14 08:56:13 · 10 answers · asked by Kess 2 in Mathematics

2007-09-14 08:55:39 · 9 answers · asked by AznPinky124 1 in Earth Sciences & Geology

3 + 2i
--------
3 - 2i.

its a fraction. please help

2007-09-14 08:53:29 · 4 answers · asked by K Rose 3 in Mathematics

lim [(1^x) / (1^x)]
x-->∞

1, indeterminate, or neither?

2007-09-14 08:50:45 · 7 answers · asked by whitesox09 7 in Mathematics

I Ix - 3I - 9 I = 2
I don't know how to do this problems like this with periods I don't know how to say to this I in english Is period good . And also show me how to do this problem.

2007-09-14 08:49:23 · 3 answers · asked by dragoi_stefan06 2 in Mathematics

limit |x|
x->0 __
x Why does it not exist? what about as x-> infinity?

2007-09-14 08:44:27 · 6 answers · asked by Chris C 2 in Mathematics