Science & Mathematics - 2 February 2007

How did (a3 + b3) = (a + b) (a2 - ab + b2)? Doesn't it equal (a3 –ab + b3)

2007-02-02 07:20:16 · 4 answers · asked by Suzy Suzee Sue 6 in Mathematics

They say that the human mind can't logically comprehend such a quantity. So how does one actually view one million of something? Not talking about a million dollars in a bank account or stacks of $100 bills.

2007-02-02 07:19:49 · 14 answers · asked by Mickey Nation 3 in Other - Alternative

my daughter has been collecting liquids in a container up in her chill room (stuff from un drank cups) and there is this 1/2 in thick curly wavy yellowy stuff floating on top, what is it?

2007-02-02 07:19:44 · 3 answers · asked by Mystee_Rain 5 in Other - Science

I was wondering if anybody has felt the energy from some of the Votices while in Sedona, AZ. A few months ago while visiting some of Sedona's well known hot spots, I felt this energy go through me, almost like a whirling sensation within my stomach, i felt a little wobbly at times. However, I left the place feeling great, like I had a spiritual awakening.
Has anybody else felt this while at a Votex site in Sedona, is what I experienced similar to what others have felt?

2007-02-02 07:17:33 · 9 answers · asked by LM 5 in Other - Alternative

I'm really stuck on the following questions:


1) The diagram shows a road from A to E.

A to B is 5km more than D to E.

C to D is twice the distance from A to B

C is midway between B and D

If the total distance from A to E is 91km, find the distance from D to E

2) The sum of four consecutive whole numbers is 98. Let the first number be x and write down the other three numbers in terms of x . Find the four numbers.

3) The sum of four consecutive odd numbers is 216. Find the numbers.


Please give working out and answer.

Thanks,
p_q

2007-02-02 07:16:40 · 3 answers · asked by Anonymous in Mathematics

2007-02-02 07:16:28 · 24 answers · asked by Anonymous in Astronomy & Space

2007-02-02 07:14:56 · 6 answers · asked by Doctor Biobrain 3 in Other - Science

ok answer these quiston first and get points

what two bays are in sothern deliwar

what canal is in nothern delawar that is named after two bodies of water that conect

what two stats are conectid at the masin dixi line

what stat is east of pennsylvania

waht river forms in the north and west bondry of west virginia

into what bay does the delawar river flow into

what bay forms in the southwest boundry of new jersey

witch five of the great lakes forms in part of pennsylvanias boundrey

what is the highst point in the mid adlantick regoin

what long narrow body of water long island from new you maine land

2007-02-02 07:11:41 · 4 answers · asked by zoow98 2 in Geography

2007-02-02 07:11:08 · 11 answers · asked by kk 2 in Astronomy & Space

Anyone know the answer?

2007-02-02 07:10:44 · 2 answers · asked by Anonymous in Mathematics

2007-02-02 07:10:33 · 9 answers · asked by Barry 1 in Engineering

I've asked this question in the chemestry section with no results.

What chemical reaction happens in gingerroot that causes it to arc in a microwave?

I peel and freeze fresh gingerroot, defrost it in the microwave.
It doesn't matter which dish I use -- after about 10 seconds the root starts arcing, buzzing, and at the point of arc the ginger piece is blackened. This has happened everytime and only with gingerroot.
Why?

2007-02-02 07:10:23 · 3 answers · asked by Anonymous in Engineering

A drinking glass is in the shape of a cylinder that is 60mm in diameter and 15cm tall. How many cubic centimeters of water will it hold?

2007-02-02 07:08:41 · 3 answers · asked by Anonymous in Mathematics

2007-02-02 07:03:27 · 5 answers · asked by Anonymous in Botany

I have to think of an idea for a term project in a parallel computing course. I have some ideas in mind, but thought I would take suggestions from people that might know more about computing and maybe come up with something better.

It should be something that is possible for one person to complete within a month or so. Also, the subject must involve parallel computer architecture in some way.

Thanks!

2007-02-02 06:58:22 · 5 answers · asked by Ubi 5 in Engineering

I was in my ex girlfriends house and was in the basement and I could feel a presents and I had to leave the basement cause it didn't feel right. Well I just bout a new apartment and and I had the feeling again but this time it didn't seem bad, like it was a good presence. Is it a ghost in the room that i'm feeling???? Oh at the old house when we bought it there were a bunch of boy toys and bikes but they only had girls I use to think that the killed the boy and that he was haunting the house

2007-02-02 06:58:06 · 20 answers · asked by A 2 in Paranormal Phenomena

I know it sounds stupid but why does it sound stupid? why don't we ride cows? are they to week or something?

2007-02-02 06:58:03 · 3 answers · asked by awbbie 2 in Biology

2007-02-02 06:56:49 · 2 answers · asked by rdwesley@swbell.net 1 in Physics

Did I do this right?

What is the area of a circle with diameter 34mm?

R = 1/2 34 = 17
A = pi r^2
So 3.14 x 289

Area = 907.46 mm

Is this correct?

2007-02-02 06:54:20 · 9 answers · asked by Anonymous in Mathematics

2007-02-02 06:54:16 · 3 answers · asked by prateek 1 in Engineering

Use this reaction for the following questions:
2Al(s)+ 6H2O(g) --> 2Al(OH)3+ 3H2

a. determine the oxidation numbers of each element in both the reactants and the products of this oxidation reduction reaction of aluminum and water vapor.

b. which element is oxidized in this reaction?

c. which element is reduced in this reaction?

2007-02-02 06:52:24 · 1 answers · asked by Tracey Lee ♥ 2 in Chemistry

Choice 1: Payments of $ 2750 now, $ 3050 a year from now, and $ 3390 two years from now.
Choice 2: Three yearly payments of $ 3050 starting now.
Modification: Interest is compounded continuously instead of annually.

(a) If the interest rate on savings were 4.92 %, which would you prefer?


(b) What is the interest rate that would make both choices equally lucrative? %

I got for part A the answer is 1, but for part B i keep getting messed up percentages like negatives and 90% and stuff like dat.

2007-02-02 06:52:18 · 3 answers · asked by Diggler AKA The Cab Driver 1 in Mathematics

theres only one animal in the world with retractable horns.

2007-02-02 06:52:06 · 10 answers · asked by thunder 1 in Zoology

How many liters of a 50 % solution should be added to a 80% solution to obtain a 60% solution?

2007-02-02 06:50:39 · 10 answers · asked by ? 3 in Mathematics

Bacteria reproduce asexually, through binary fission.
How, then, does genetic variation arise in a population of bacteria?

How does genetic variation within a bacterial population lead to antibiotic resistant strains?

2007-02-02 06:49:08 · 6 answers · asked by JoAnna 2 in Biology

2007-02-02 06:48:27 · 3 answers · asked by etheldreda_daly 1 in Medicine

i dont understand:
draw dot diagrams for one Li and one Cl atom.
write the symbols for these ions that show their overall charge.
write the formula for the compound formed.

if you know the answer, please explain it so, i can do the other problems as well

2007-02-02 06:47:00 · 6 answers · asked by globalpinaygirl 2 in Chemistry

Could someone please work this problem for me. If you don't know, just move on?

I'm having a problem figuring this one out. Any help would be appreciated. Thanks.

Please simplify:
6x^-6 t^6 x^9 * 3z^7 *4z^-7 t^-8

Please factor completely:
6t^4 + 21t^3 - 45t^2

2007-02-02 06:46:51 · 5 answers · asked by SweetnSpiceyBrown 2 in Mathematics

A fleeing object leaves the origin and moves up the y-axis. At the same time, a pursuer leaves the point (1,0) and always moves toward the fleeing object. If the pursuer's speed is twice that of the fleeing object, the equation of the path is

y = (1/3)[x^(3/2)-3x^(1/2)+2]

How far has the fleeing object traveled when it is caught? Show that the pursuer has travelled twice as far.

2007-02-02 06:46:18 · 3 answers · asked by colt 1 in Mathematics

Let's say there was a fox (the animal) sound asleep on the porch. If I were to blow an air horn at full blast 6 inches from its ears, what would happen to the fox and to me?

2007-02-02 06:46:05 · 6 answers · asked by Anonymous in Zoology