Science & Mathematics - 15 July 2007

2007-07-15 21:56:08 · 9 answers · asked by Anonymous in Mathematics

I don't understand solving Linear Equations by algebra. Any help would be appreciated.

2007-07-15 21:55:14 · 10 answers · asked by Anonymous in Mathematics

2007-07-15 21:32:07 · 10 answers · asked by Francois de Tilly 1 in Astronomy & Space

2007-07-15 21:31:03 · 2 answers · asked by Anthony 4 in Chemistry

"A 1.5 N ball is thrown at an angle of 30o above the horizontal with an initial speed of 12 m/s. At its highest point, the net force on the ball is:
a. 14.7 N down
b. 9.8 N, 30 degrees below the horizontal
c. zero
d. 9.8 N up
e. 1.5 N down
is there equation for the highest point? I thought it is zero because it has only constant horizintal velocity, so acceleration is zero and net force is zero. I got wrong. Anybody please explain to me?

2007-07-15 21:22:30 · 3 answers · asked by Anonymous in Physics

f(x) = ___________
a = ____________

2007-07-15 21:18:31 · 1 answers · asked by Anonymous in Mathematics

Surely, the distcance of 250,000 miles cannot be the obstacle, can it?

2007-07-15 21:14:45 · 7 answers · asked by Anonymous in Astronomy & Space

Did the following: 1/cosx - sinx/cosx dx, giving me: ∫secx - tanx dx, is this the right procedure? The book has a different answer...

2007-07-15 21:14:29 · 4 answers · asked by Jorm 3 in Mathematics

2007-07-15 21:14:14 · 3 answers · asked by Anonymous in Astronomy & Space

into amphibians and then ALL land vertebrates (including man) then why has it and it's genetic code remained stable for 360 million years? And when in 1938 a living coelacanth was found why did scientists try and squeeze another fish from the same group (meaning not much different from the living one)into their theory even though there was no strong scientific evidence that it fit any better than the previous fossil? Isn't that backward thinking? Shouldn't you have proof before you come up with a theory? It seems to me that scientists have a theory and when the outcome isn't what proves their theory true, they just come up with another "guess" to make it work. I wouldn't mind if there was evidence for evolution but there isn't any. All of the old icons of evolution have been proven untrue but since there is no real scientific proof of how we got here the scientists just hold on to what they've got.

2007-07-15 21:10:45 · 4 answers · asked by question asker 4 in Biology

At what value of x does the local max of f(x) occur?

x = ________.

2007-07-15 21:04:44 · 2 answers · asked by goodguy083 1 in Mathematics

2007-07-15 20:57:52 · 7 answers · asked by Nicole 3 in Zoology

2007-07-15 20:56:00 · 5 answers · asked by loro boy™ 1 in Astronomy & Space

2007-07-15 20:49:47 · 53 answers · asked by keeganfd 2 in Astronomy & Space

improve her condition?( It is important to note that Maria is allergic to eggs and dairy products)

2007-07-15 20:47:33 · 7 answers · asked by Anonymous in Biology

2007-07-15 20:41:56 · 5 answers · asked by Anonymous in Biology

2007-07-15 20:33:33 · 6 answers · asked by Rakesh Kumar M 1 in Astronomy & Space

1) 4x^4 + 7x^2 - 9
2) 5x^3 +14x^2 - 53x - 10


Dont simply write the answers down, show the stpes and the logic for the 1st question , I tried to think for both the question for a long time but it just isnt cliking the rest were moder and easy and tough but I could do it correctly, Thanks for the help.

2007-07-15 20:32:48 · 4 answers · asked by Ice S 2 in Mathematics

State why you think it's true or false.

2007-07-15 20:30:19 · 3 answers · asked by anniN 1 in Biology

3 guys buy a football for 30 dollars. they each paid 10 dollars. when they get to the cashier the, the cashier tells them the ball is on sale. The ball is on sale for 25 dollars. The cashier dosn't want to spit the money up evenly for the 3 guys so she gives them each a dollar back and pockets the other 2 dollars. So if she gave them each a dollar back that means they each payed only 9 dollars. 3 guys at 9 dollars each equals 27 dollars plus the 2 dollars she pocketed equals 29 dollars. WHAT HAPPEND TO THE OTHER DOLLAR.

2007-07-15 20:26:20 · 2 answers · asked by jvela310 2 in Mathematics

are the any plans in the process?

2007-07-15 20:19:15 · 8 answers · asked by rihannsu 2 in Astronomy & Space

Tell why you think it's true or false.

2007-07-15 20:16:49 · 12 answers · asked by anniN 1 in Geography

ive read through all these threads about the downsides of medicine, with people saying that if your a doctor
-your entire life is constant stress and headaches
-you have to sacrifice having a family
-long hours, underpaid

yet from my city, all the doctors i know are incredibly rich, have families and laid back lives ....

any doctors on this forum care to respond about there take on medicine today and whether all these statements of the negative aspects of medicine are true?

2007-07-15 20:03:32 · 8 answers · asked by Anonymous in Medicine

x^3-21x+20

2007-07-15 19:58:21 · 6 answers · asked by matt_mac 1 in Mathematics

what the expression 21% 5 yield____________

C condition x*!=y_________

== how should bereade?

C=c+3 canolso be writen as?___________

pasesses=passes+1 could be writen using a postincrement
operator as____________

following statament for (i= 100; i>= 1; i--) there is a(n)



I holp you can help me.

2007-07-15 19:50:44 · 3 answers · asked by Anonymous in Mathematics

I ate a day old snake from the road, now i am sick, should i go to the hospital???

2007-07-15 19:47:46 · 13 answers · asked by dummy123 1 in Zoology

2007-07-15 19:45:28 · 3 answers · asked by john ruffy t 1 in Chemistry

2007-07-15 19:38:41 · 3 answers · asked by mm 1 in Mathematics

can someone please explain to me, Ionic bonds and covalent bonds and how you can tell what elements are Ionic and what are covalent

Thank you so much

2007-07-15 19:37:54 · 8 answers · asked by Anonymous in Chemistry

No comment...

2007-07-15 19:35:30 · 2 answers · asked by jim_tomb_stone 1 in Physics