Science & Mathematics - 16 September 2007

i really need help 2 pass a test!!

2007-09-16 15:55:43 · 18 answers · asked by Anonymous in Geography

2007-09-16 15:52:37 · 4 answers · asked by laurenjade11 2 in Biology

2007-09-16 15:51:39 · 1 answers · asked by Anonymous in Earth Sciences & Geology

In a zoology journal I read recently, I came across this statement: "The area of the outer circle was 3 times larger than that of the inner circle."

It was also given that the radius of the outer circle was 100 m while the radius of the inner circle was 50 m.

I tried verifying this using the equation: Ao/Ai=3 (Ao=area of outer circle, Ai = area of inner circle). But instead of getting the expected answer of 3, I got 4 instead. I suspect that there was something in the statement that made things quite confusing.

So I ask you, what did the statement mean? And what was the equation that was used for the said statement? I hope you can reply ASAP.

2007-09-16 15:50:53 · 4 answers · asked by Detective Mask 3 in Mathematics

math question i need help on

2007-09-16 15:50:50 · 5 answers · asked by sabur 1 in Mathematics

I need at least 2 differences please.

Thank-you.

2007-09-16 15:50:21 · 2 answers · asked by Anonymous in Chemistry

2007-09-16 15:49:52 · 5 answers · asked by Anonymous in Mathematics

Seriously.. How can you read a tree? By its rings, to see how old it is, and what it's been through by the spacing of the rings??

2007-09-16 15:49:40 · 3 answers · asked by Angel 2 in Botany

I'm troubled with a question in which I have to obtain the equation of a circumference that contains the points E(4,5), F(3,-2) y G(1,-4). Any idea?

2007-09-16 15:49:18 · 2 answers · asked by logivan_net 3 in Mathematics

Help me!!

2007-09-16 15:49:08 · 3 answers · asked by Kwan L 2 in Astronomy & Space

please help me simplify u^2 v^-2 / (u^4v)^-1

2007-09-16 15:44:03 · 3 answers · asked by iliveinflorida 2 in Mathematics

2007-09-16 15:43:28 · 2 answers · asked by da 2 in Mathematics

Can you show me the steps of how to do the limit as x approaches 2 of [sqrt (x^2+6x)-4]/x-2? Thanks. Also can be written:

(X^2+6x)^.5 -4

over

x-2.

2007-09-16 15:41:46 · 3 answers · asked by ILuvTaraReid 2 in Mathematics

2007-09-16 15:41:40 · 7 answers · asked by Carlton S 1 in Earth Sciences & Geology

Divergent
What part of the US is impacted by divergent?

Convergent
What part of the US is impacted by convergent?

Strike Slip fault
What part of the US is impacted by strike slip fault?

2007-09-16 15:41:05 · 3 answers · asked by Pammy Cakes 2 in Earth Sciences & Geology

2007-09-16 15:41:04 · 2 answers · asked by Shirley P 1 in Engineering

A particle travels horizontally between two parallel walls separated by 18.4m. It moves toward the opposing wall at a constant rate of 7.7 m/s. It also has an acceleration in the direction parallel to the walls of 2.9 m/s2.

a. what will be its speed when it hits the opposing wall.

b. At what angle with the wall will the particle strike?

2007-09-16 15:40:51 · 1 answers · asked by glitterized_dreamz 1 in Physics

Solve for h: V=(pi)r(squared)h

2007-09-16 15:36:30 · 6 answers · asked by ??????????? 2 in Mathematics

2007-09-16 15:33:35 · 1 answers · asked by shlompi 1 in Mathematics

Directions: Solve Each Equation Step By Step, And Write The Property With Each Step.

Solve: 5 - 1/2(x - 6) = 4

Please Show All Steps

Thanks SOO Much :-)

2007-09-16 15:32:02 · 2 answers · asked by Joe 1 in Mathematics

I have a Littman II SE, which I am ready to toss. I cannot hear most murmurs unless they are totally obvious. I have tried even the Littman III Cardiology scope but it does not even compare to my vet's Philips Rappaport-Sprague scope. Unfortunately, they are now discontinued and I cannot find one for sale anywhere. I even like the $30 Prestige Sprague better than my Littman....
I have listened to an ultrascope which is better than mine, but I am not keen on carrying that bulky scope everywhere....
I would like to find a stethoscope that comes close to the Philips (formerly HP) scope that is not digital....
Can someone please Help?

2007-09-16 15:30:57 · 6 answers · asked by Shelly L 2 in Medicine

kindly please give more about volcanism and what are the causes of it? What are also the effects of it to the environment, to the community,and to our climate? what are also the types of volcanism? and why is that volcanism is present in other planets as well as in the moons in the solar system? kindly send me also some useful images with regards to this volcanism?thank you

2007-09-16 15:30:23 · 2 answers · asked by ruben a 1 in Earth Sciences & Geology

round answer to the nearest 10th x-5y

2007-09-16 15:29:22 · 2 answers · asked by math? 1 in Mathematics

Ok, so I have been looking into this Mayan prediction that the world will end or be changed forever on 12/21/12 and I am not really sure what to believe. Has anyone ever heard of any other Mayan prediction that has come true?

I swear in my short lifetime there has been hundreds of false predictions of the earths demise I really just want to know why this is any different. The Mayans were very advanced for there time yet they where not even prepared for there own demise, so I find it strange that they are calling ours.

Could this just be the day they decided to stop witting or is there any type of scientific proof? I have heard the pole reversal theory and I geuss it is plausable.

2007-09-16 15:28:30 · 5 answers · asked by Ronzilla 2 in Astronomy & Space

I am currently in modern algebra, or also known as contemporary/abstract algebra.

The question is short and simple, but I have absolutely no clue how to approach this problem.

Question: Give an example of a group with 105 elements. Give two examples of groups with 44 elements.

How do I go about this? Can I just name a set and list 105 elements? That seems absurd. I really need help. Any suggestions are greatly appreciated!
Thanks for your time!

2007-09-16 15:28:27 · 1 answers · asked by PuzzledStudent 2 in Mathematics

For the ballistic missile aimed to achieve the maximum range of 16500 km, what is the maximum altitude reached in the trajectory?

2007-09-16 15:27:39 · 1 answers · asked by mathgeek 1 in Physics

2007-09-16 15:27:11 · 3 answers · asked by Lady E 1 in Mathematics

2007-09-16 15:25:54 · 2 answers · asked by Anonymous in Physics

2007-09-16 15:21:04 · 3 answers · asked by Wizzpa 1 in Astronomy & Space

2007-09-16 15:20:28 · 7 answers · asked by Anonymous in Biology