Science & Mathematics - 29 August 2007

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is 1-4x a polynominal... what is the definition of a polynomial?

2007-08-29 04:06:22 · 4 answers · asked by leoncita 2 in Mathematics

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Why does my portable A/C have an air Intake AND Outtake both with hoses that run outside?

Would it not run more efficiant if i removed the intake hose from pulling the warmer air from outside, and have it pull the colder inside air? Danby company says no. Why?

2007-08-29 04:05:59 · 4 answers · asked by Dan 2 in Physics

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3a^2-12a=0?

how do you resolve this
how can you convert it to standart form?

2007-08-29 03:54:53 · 5 answers · asked by ca481 1 in Mathematics

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what do wilde jack rabbut infants look like?

My cat found a wild nest and i need to know what they look like to make sure

2007-08-29 03:51:05 · 7 answers · asked by Anonymous in Zoology

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The nerve chord in vertebrates?

1. is ectodermal
2. is mesodermal
3. is endodermal
4. forms from an external fold of tissue in the embryo

Select your answer from A-E below
A. 1 C. 3 E. 1, 4
B. 2 D. 4

2007-08-29 03:47:06 · 3 answers · asked by Irosh Bandara 5 in Biology

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What is the advantage of storing propane and butane as a pressurised/refrigerated liquid?

the fuels are being stored on an LPG fractionation plant...

THANKS :)

2007-08-29 03:45:35 · 6 answers · asked by <3 ...sEz... <3 3 in Engineering

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1. Occurs when cell division is across the whole egg
2. is where a gastrula forms mesoderm from mesenchymal cells
3. occurs when zygotes have very little yolk
4. occurs when cell division is restricted to the animal pole

2007-08-29 03:44:55 · 4 answers · asked by Irosh Bandara 5 in Biology

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analog to digital converters???

what is mean by a "quantization level " in adc ? tell that in common language and with examples if possible . i did not understand much in wikipedia .
thx!!!

2007-08-29 03:32:39 · 2 answers · asked by Anonymous in Engineering

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Why is the earth round?

2007-08-29 03:31:47 · 13 answers · asked by monitoringcctv 1 in Earth Sciences & Geology

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What is the difference between delta y over delta x and dy/dx?

Can someone give a detailed reason why? - any why the letters d?....any historical/ etymological background info would be great too...

2007-08-29 03:31:37 · 9 answers · asked by Anonymous in Mathematics

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You and two friends are in a canoe on a large lake. If 3 of you together can paddle at a speed of 4 mph....?

A.) how far can you travel in 75 minutes?

B.) how many minutes would it take to travel 10 miles?

2007-08-29 03:29:04 · 7 answers · asked by brunette12x 1 in Mathematics

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Most animals have the ? surface pointed towards the ground?

A. anterior
B. dorsal
C. proximal
D. inferior
E. ventral

2007-08-29 03:27:04 · 5 answers · asked by Irosh Bandara 5 in Biology

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There are some acts that many a time take place with no reason nor rhyme, when we see danger?

2007-08-29 03:26:42 · 4 answers · asked by Anonymous in Astronomy & Space

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is it more common for people with huntington's disease to have heterozoygous or homozygous alleles?

I'm doing an extended essay on genetics and I'm just trying to see if people who have Huntington's disease have heterozygous alleles or homozygous and which is more common.

2007-08-29 03:25:31 · 6 answers · asked by Anonymous in Biology

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Find the area enclosed by the curves: y^2=2x, and y=2x-2.?

This is the graph of the functions: http://img2.freeimagehosting.net/image.php?021c196fae.jpg

Which method is better to use the integral, from top - bottom dx, or right - left dy? Any hint is appreciated, even to find the upper and lower limits, thanks!

2007-08-29 03:25:29 · 3 answers · asked by Jorm 3 in Mathematics

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If space is a vacuum what does the shuttle "push off" of?

2007-08-29 03:21:32 · 6 answers · asked by Dawg G 1 in Astronomy & Space

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explain 5deg down bubble?

what does 5egrees down bubble mean>

2007-08-29 03:19:02 · 1 answers · asked by Paul 4 in Chemistry

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How do you construct a supersingular elliptic curve in the field Fq?

If anyone can give me any links to articles or any information about how to construct a supersingular elliptic curve in Fq then that would be extremely helpful - thanks!

2007-08-29 03:18:33 · 1 answers · asked by Anonymous in Mathematics

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What is coming out of airplanes that leaves trails sometimes and not at other times?

I have observed that at times planes fly and the white stuff disappears right away; others times it lingers for a very long time and fills the sky. Sometimes planes leave a checkered pattern. What is this????

2007-08-29 03:12:20 · 5 answers · asked by Jan 1 in Weather

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sorry. another algebra question.?

1. find the reciprocal of -8/7.
what is reciprocal? is it the same thing as additive inverse?

2. x[(2)(x)] is (2x)(x^2) right?

3. simplify:
[6(x-3)+3x]-2{3[2(2y-4)]-5}

thank you soo much!

2007-08-29 03:01:43 · 8 answers · asked by Anonymous in Mathematics

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where are you?

2007-08-29 02:58:17 · 8 answers · asked by anupam.mohanty 1 in Geography

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Why didn't NASA send another rocket to moon if they could send one years ago?

2007-08-29 02:57:07 · 10 answers · asked by Anonymous in Astronomy & Space

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how come s+O2-->so3?

sulfur + oxygen (diatomic) --> sulfite

2007-08-29 02:53:33 · 3 answers · asked by Anonymous in Chemistry

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what is eather?

ETHER
Current mood: grateful
Category: Religion and Philosophy

THE EATHER OF SPACE

Eather of space probley from I burn,

a material substance of more suitable kinds than visible bodies, supposed to exist in those parts of space which are apparently empty.: so thus begins the article "Ether" written for the ninth edition of the encyclopedia Britannica by James Clark Maxwell. The derivation seems to indicate some connexion in the mens minds with the idea of fire: the other three elements earth Water Air representing solid, liquid and gaseous conditions of ordinary matter respectively. The name Ether suggests a far more subtle or penetrating and ultra material kind of substance.

Newton explains the term for the medium which fills space - not only space which appears to be empty, but space also which appears to be full; for the luminiferous ether must undoubtedly pebetrate between the atoms - must exist in the pores so to speak - of every transparent substance, else light could not travel through it.

2007-08-29 02:50:34 · 4 answers · asked by Anonymous in Physics

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Can law of conservation of mass be wrong?

While turning the turbines the amount of water which is going inside is equal to amount of water comming out, but still electricity is produced which is made up of electrons. so definitely law of conservation of mass should be wrong. Then still why do we practice it?

2007-08-29 02:49:56 · 4 answers · asked by Amogha c 1 in Chemistry

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Can law of conservation of mass be wrong?

While turning the turbines the amount of water which is going inside is equal to amount of water comming out, but still electricity is produced which is made up of electrons. so definitely law of conservation of mass should be wrong. Then still why do we practice it?

2007-08-29 02:49:17 · 2 answers · asked by Amogha c 1 in Chemistry

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