Science & Mathematics - 28 August 2007

2007-08-28 04:09:15 · 7 answers · asked by Anonymous in Mathematics

2007-08-28 04:08:31 · 8 answers · asked by smilingontime 6 in Other - Science

350 lbs of sugar were poured into 4 and 3/8 lb packages how many packages were filled?

2007-08-28 04:01:54 · 12 answers · asked by Rhyannonn C 5 in Mathematics

2007-08-28 03:58:02 · 11 answers · asked by Anonymous in Mathematics

If 3x = 8y and 12y=7z and kz = 72 x
SOlve for k

2007-08-28 03:55:50 · 10 answers · asked by homeworkmom 1 in Mathematics

Are there actually floods in that desert city?

2007-08-28 03:55:48 · 2 answers · asked by Anonymous in Weather

.............................

2007-08-28 03:55:42 · 9 answers · asked by ann s 1 in Mathematics

Could it be that a male who could reproduce quickly while the female was still sleeping and this less able to reject his advances might have better reproductive chances? Or could it be that the rested body having had time to produce sperm was fitter for reproduction? Any other theories?

2007-08-28 03:48:07 · 17 answers · asked by Shona L 5 in Biology

no

2007-08-28 03:47:13 · 14 answers · asked by Anonymous in Geography

you can write in any style>>>>>>>>>>>

2007-08-28 03:44:49 · 36 answers · asked by Anonymous in Mathematics

SMS JOKES

2007-08-28 03:44:48 · 3 answers · asked by Anonymous in Other - Science

2007-08-28 03:43:12 · 7 answers · asked by ann 1 in Astronomy & Space

Hey. If some of you have seen my recent posts you will know that i have been working of the volume of a cylinder. The length was 1.1m and the diamter was 90cm.

From doing the calculations i got the answer 699435 or 0.699435 etc, varies if i convert. In my book the anwer is 0.70m3. Could it be 0.7m3? I was wondering how to i round off the anwer i got from my calculations? From the book i have been learning from i've only used rounding off when given how many decmal places to move, but it doesn't tell me here. Why do i convert it into metres? Is it because metres are larger than centimetres? Please could you give me a guide like answer on to how to anwer these questions in a maths exam.

Also most importantly if i was in an exam i had the exact question could i put 699435m3 etc. as my anwer or has it got to be 0.70m3? Would an examiner whilst marking my paper give me no marks becuase i didn't round off? How do i know when to round off and not to?

Please help. Thank you.

2007-08-28 03:39:22 · 3 answers · asked by Jay Garrick 1 in Mathematics

2007-08-28 03:38:40 · 3 answers · asked by coldwoim 1 in Engineering

where can I find a picture online of when Mars was so close to the Earth on August 27th that it looked like Earth had a second moon??

2007-08-28 03:36:31 · 9 answers · asked by Anonymous in Astronomy & Space

i really need the answer....and i want as much as i can get....

2007-08-28 03:35:21 · 5 answers · asked by Zyda 1 in Engineering

2007-08-28 03:34:48 · 1 answers · asked by alex b 1 in Chemistry

I know you hae to move the decimal point when you multiply and divide decimals but why do you have to do so?

2007-08-28 03:34:39 · 5 answers · asked by cdgasmartie2005 1 in Mathematics

I saw a spider in my house 2 days ago...there are no other bugs in my house i hope.......do you think its dead by now??? its somewhere in my couch...its brown, fast runner and its has layered looking circles on its back.....the circles ar brown, yellowish brown, and grey...............is dead today...what kind of spider is the freakin thing

2007-08-28 03:25:49 · 9 answers · asked by Jessica 1 in Zoology

In what way would i be able to explain the big bang theory in a way that a group of 2-5 graders would be understand? i have to explain this to an elementary class?

2007-08-28 03:25:44 · 7 answers · asked by Anonymous in Astronomy & Space

Forest fires are at present raging and sweeping across Greece uncontrollably. Villages have to be evacuated and some historic sites such as Mt Olympia are also threatened.

However, how can villages and historic sites be threatened by forest fires? Are they not outside the forest and far away? For example, can New York or Las Vegas be threatened by forest fires? Surely not, isn't it?

So why must villages be evacuated? I don't understand.

2007-08-28 03:23:57 · 18 answers · asked by Man_Hat_Tan 3 in Earth Sciences & Geology

2007-08-28 03:23:23 · 20 answers · asked by Anonymous in Biology

what superiority it has for animals that has two sex ?

2007-08-28 03:22:55 · 4 answers · asked by Anonymous in Biology

2007-08-28 03:20:43 · 3 answers · asked by beachrocker 2 in Zoology

(2x^2)^3 (4x^3)^-1 and (3x^-2)(3x^2/2)^2

2007-08-28 03:20:34 · 9 answers · asked by Anonymous in Mathematics

in the movies?

2007-08-28 03:20:08 · 6 answers · asked by Sporadic 4 in Zoology

School starts tomorrow, and this one problems has been driving me crazy all summer.

Some cylindrical pool has 2292 gallons of water, 5 feet in depth, and I need to find the radius. But to use the formula (V=pi*r^2*h), I need the volume, and gallons don't work with feet, right? I Googled how to convert gallons to cubic feet, and i got 306.395 ft^3. I should be using that data, right?

I've never had to convert gallons to cubic feet, and nowhere in the packet does it show you how. Am I thinking to much about this, or were my instincts correct?

2007-08-28 03:18:27 · 6 answers · asked by JM 2 in Mathematics

If a 1.77g sample of zinc is heated with excess sulfur to form 2.64g of zinc sulfide. Calculate the mass of sulfur used.

2007-08-28 03:17:31 · 3 answers · asked by Anonymous in Chemistry

The delta is bright as is a line that follows the river, but nothing else around it. What is the reason for this? Are there cities that line the river for hundreds of miles?

2007-08-28 03:17:26 · 5 answers · asked by presidentrichardnixon 3 in Geography

Deuterium is an isotope of hydrogen. The abundance of deuterium in water is 0.015%. How many moles of water would be required to obtain 0.074 moles of deuterium (D subscript2)?

2007-08-28 03:16:08 · 4 answers · asked by Anonymous in Chemistry