Science & Mathematics - 7 July 2007

how much can an avarege ant lift

2007-07-07 09:17:02 · 9 answers · asked by Xx PEANUT xX 1 in Zoology

If f(x)= -x3 + x2 + x find f (-2)

2007-07-07 09:15:31 · 3 answers · asked by Anonymous in Mathematics

If the product of the integers a, b, and c is 1, then what is the difference between the largest and smallest possible values of a^2 x b^3 x c^4?

a) -2 b) -1 c) 0 d)1 e)2
pls explain or show work

2007-07-07 09:14:55 · 1 answers · asked by ? 2 in Mathematics

hii ok so i have another homework question..

- use the graphs to determine the equation of the qudratic functions in standard form.

its a parabola opening down, the roots are at -4 and 7. and they give me another point which is (6,32). there is no vertex point given.

i started by doing this :

a(x+4)(x-7) =0
a(x^2-7x+4x-28)=0
a(x^2-3x-28)=0

then i plugged in the points to find a.

32=0(36-18-28)
32=(a)(-10)

NOW, here's where the problem is..

a is supposed to equal -3.2. (the answer is -3.2x^2+9.6+89.6).

but how is 32*10 = -3.2??? :S :S

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also, how do you find the equation when its a parabola opening up. they only give you the vertex (3,5) and one point on the graph which is (9,-35) ??

please include the steps in your answer plz!! :) thx!

2007-07-07 09:13:19 · 3 answers · asked by mystery_girl07 2 in Mathematics

i have a tset coming every 2 days of so and this one is about equation of a line.. can someone explain to me how to do it with the formulas and show an example.. thanks!

i need to know how to work them with these formulas :

y - y1 = m(x - x1)

Ax + By + C = 0

2007-07-07 09:08:22 · 6 answers · asked by Anonymous in Mathematics

Please explain and correct me where wrong.
I know that the maximum RPM of an engine dictates the maximum speed at which air can enter it. So when the craft is travelling faster than that speed, there is an ingenious inlet design.
I know that the design of the inlet creates a shock wave to kill the energy in that air, and slow it down.
(This is more so in Supersonic but I'm sticking to subsonic)
So, if a craft is travelling at 600mph, and (Say) the max intake speed is 500mph....
What happens in front of the engine? Is there a build up of air that can't get into the engine?
That would cause a hell of a lot of drag, how is that dealt with?

Please explain in detail as this sort of thing is best described with drawings....but we don't have them.
Cheers!

2007-07-07 09:01:37 · 2 answers · asked by Paul H 4 in Engineering

For instance, all of the energy being burned by all of the electronic devices like video displays, lights, musical instruments, and so on.....Plus what about the tons of garbage being generated by all of those people at the concert? All of the plastic bottles, cups, wrist bands, and so forth. Plus, what are they going to do with all of the tires they used for the background? What about the paint they used on the tires....even if they recycled the tires, wouldn't the paint harm the enviroment? Am I the only one out there that thinks this is rediculous?

2007-07-07 08:59:45 · 10 answers · asked by RubyUnicorn 3 in Earth Sciences & Geology

and don't give us so some trumped up version of what Newtons laws state. Just what the hell is it?

2007-07-07 08:57:14 · 19 answers · asked by Anonymous in Physics

when you have heavy balls what can one due to lighten the load

2007-07-07 08:49:22 · 3 answers · asked by As Good As I Once Was 2 in Botany

2007-07-07 08:48:50 · 3 answers · asked by xac 1 in Weather

What color is poop?

2007-07-07 08:48:12 · 7 answers · asked by JEN! 3 in Biology

Got a weird question, but here it goes. Last week we had our old driveway ripped up to be replaced. In the process they laid down all sorts of dirt, rocks and pieces of cracked ceramics. We have to let it settle for 3 weeks until the new Asphalt is laid down. Since then, we've had dozens and dozens of beautiful butterflies all over the ripped up area. What is the attraction? There must be something in that dirt but what? I thought they liked nectar. Can anyone explain this phenomemna?

2007-07-07 08:46:43 · 4 answers · asked by DAR76 7 in Biology

explanation would be useful..thanks

2007-07-07 08:36:52 · 9 answers · asked by Anonymous in Mathematics

i could use some help...

2007-07-07 08:34:50 · 9 answers · asked by Anonymous in Mathematics

well were doing an indie show for brockton and we need fog but fog machines are to loud so i was wondering about dry ice fog how long will the fog last and what if i ad food coloring to the liquid or ice will the fog change and does the fog rise or stay closer to the ground ?????

2007-07-07 08:33:56 · 3 answers · asked by anthony m 1 in Chemistry

2007-07-07 08:32:49 · 11 answers · asked by Anonymous in Biology

2007-07-07 08:32:49 · 8 answers · asked by Cherylfarmer 1 in Agriculture

(ie: fusion, solar, nuclear, etc.)

2007-07-07 08:29:59 · 12 answers · asked by toxicdrop2406 1 in Physics

2007-07-07 08:29:43 · 17 answers · asked by Anonymous in Astronomy & Space

MATH

2007-07-07 08:28:09 · 4 answers · asked by Anonymous in Mathematics

There's a cage with 10 pets in it - dogs and cats. There are 56 biscuits to be fed to them. Each dog eats 6 biscuits and each cats eats 5 biscuits. How many of each pet are there?

The algebraic equation to this problem is

6D + 5C = 56
6(10 - C) + 5C = 56
60 - 6C + 5C = 56
60 - C = 56
- C = -4
C = 4

but where did the 6(10-C) come from? Also, how did you came to having -C=-4?

2007-07-07 08:26:56 · 9 answers · asked by nightowl 2 in Mathematics

something old like that.. some bands that my sister would of listened too back when she was in highschool, shes 23.

2007-07-07 08:25:22 · 4 answers · asked by Spencer M 2 in Other - Science

2007-07-07 08:22:50 · 3 answers · asked by albert01a 1 in Physics

2007-07-07 08:21:56 · 21 answers · asked by willow 6 in Other - Alternative

Find x: log(base2)(3x+2)=5

2007-07-07 08:20:58 · 7 answers · asked by jordan 2 in Mathematics

2007-07-07 08:16:18 · 5 answers · asked by Anonymous in Other - Science

Any help with this would be greatly appreciated.

Solve the equation: x^5 + 1 = 0 . Give the 5 solutions in both trigonometric form and standard form.

2007-07-07 08:12:20 · 4 answers · asked by realpoeticyouth 1 in Mathematics

all things, down to the smallest molicules, have a vibrational resonance frequency so does anyone know if the entire universes resonance frequency has been measured and if so where can I find out what that frequency is?

2007-07-07 08:10:06 · 5 answers · asked by ? 1 in Astronomy & Space

Ond DNA Testing Company states the Native American DNA is different from East Asian DNA, while another DNA testing company states Native American DNA and East Asian DNA are the same.

WHICH ONE OF THESE DNA TESTING COMPANIES ARE CORRECT ?

2007-07-07 08:08:28 · 5 answers · asked by Marvin R 7 in Biology

I would like to know is Burn Surgery a Subspecialty or Specialty of Surgery also is it on it long and how long does it take to become One ?

2007-07-07 08:02:42 · 3 answers · asked by Anonymous in Medicine