Science & Mathematics - 1 January 2007

of the word -PROPORTION.

if ur doing the question by taking cases like 1)3alike 1diff 2)2alike 2alike 3)2alike 2diff 4)all diff. then plz explain clearly why we take 'PP' or 'OOO' as a single element, without dividing the answer by 2! and 3! respectively.
And also that, why in case 2) we don not consider 'OO' out of 'OOO' as a possibility of being 2 alike.
thanks a lot for ur help....

2007-01-01 19:32:22 · 6 answers · asked by practico 1 in Mathematics

2007-01-01 19:29:54 · 10 answers · asked by Star-Scream 2 in Astronomy & Space

1. Points A(3,5) and B(-1,-3) lie on the line y=2x-1. Determine which of the following points is collinear to A and B.
a. 4,6 b.-3,-1 c.1,1 d. 3,-3

2. Determine the value of r so that a line thorugh (r,3) and (7,4) has a slope of 1/2.

3. THe faces of a cube are numbered with consecutive numbers. Three of the numbers are shown. WHat are the possible sums of the numbers on all the faces of the cubes? (23, 20, 19)

4. Write a conjecture : Given: M is the midpoint of line AB

5. How many lines can be drawn containing three collinear points?

2007-01-01 19:29:44 · 1 answers · asked by cfishot 2 in Mathematics

2007-01-01 19:29:39 · 8 answers · asked by Anonymous in Chemistry

2007-01-01 19:28:43 · 3 answers · asked by mahdi n 1 in Engineering

1)Li3PO4(aq) + Sr(OH)2(aq)

net ionic> Li3PO4(aq) + Sr(OH)2 > Li3(OH)2(s) +PO4Sr (aq)

was Li3(OH)2 the right solid and why or why not?
thanks

2007-01-01 19:20:38 · 3 answers · asked by Anonymous in Chemistry

2007-01-01 19:18:34 · 2 answers · asked by ashlay 1 in Engineering

It does NOT equal to approx. 222.5. Instead, it equals to 137.5. but I feel it should SIMPLY equals to golden fraction of 360 degrees, but, well... in facts, it equals to golden fraction of 360 degrees TAKEN AWAY FROM 360 AS SUBTRACT. Why???

2007-01-01 19:15:04 · 1 answers · asked by trey 1 in Physics

hot ones

2007-01-01 19:13:39 · 7 answers · asked by bhupinder 1 in Botany

please suggest some versions as I have no idea what is available on the market

2007-01-01 19:11:33 · 2 answers · asked by rampington 1 in Medicine

1.determine the value of r so that a line through the points with the coordinates )r,4) and (-2,3) has slope 1/4.

2. what is the lehgnth of a line with coordinates (-4,-3) and (4,3).

3. Find the midpoint of the segment with endpoints A(-6,4) and C(4,-6)

4. WHat is the least number of thumtacks that must be used to tack up 12 regular pictures, all the same siz,so that they can all be seen? Assume each corner of each picture is tacked. (A tack can be in the corner of more than one picture)

2007-01-01 19:08:49 · 7 answers · asked by cfishot 2 in Mathematics

find the constants A and B that make the given equation true.

x -16
————
x - 2x - 8

=

A
_____
x + 2

+

B
____
x - 4

I know it's written out really weird but any help at all would be greatly appreciated.

2007-01-01 19:07:33 · 3 answers · asked by Anonymous in Mathematics

I heard a peculiar saying that, the lovebirds keeps on chirping and produce a steady noise. This noise would cause brain tumour to the people around. Some argue that it is very scientific. Is it true?
Please solve this doubt of mine. Because I've planned for having lovebirds

2007-01-01 19:05:26 · 9 answers · asked by Anonymous in Zoology

write in decimal notation 2.718 x 10^2

Is 271.8 right?

It's been a while since I've done these.

2007-01-01 19:02:35 · 6 answers · asked by Sally 1 in Mathematics

write an algorithm for the following question: 1)Bharath borrowed Rs.20,000 partly from a friend at 12% SI and the remaining from the bank at 15% SI. At the end of 2 years, he paid back an amount of Rs.25,700. What is the amount that he borrowed from the bank?

2007-01-01 18:56:53 · 6 answers · asked by Anonymous in Mathematics

The volume of the similar object is 3240 cubic centimetres.Find its height.

2007-01-01 18:55:45 · 7 answers · asked by Anurag 2 in Mathematics

2007-01-01 18:53:43 · 6 answers · asked by silambs 2 in Mathematics

2007-01-01 18:53:15 · 5 answers · asked by cfishot 2 in Mathematics

reaction of elements
joining of some elements and produce new mixture

2007-01-01 18:51:42 · 4 answers · asked by ali abbas aman 1 in Chemistry

2007-01-01 18:48:10 · 10 answers · asked by mazza 1 in Mathematics

I follow all of the steps but if i'm understanding correctly the 4 daughter cells that are the result of meiosis each onl have one quarter of the original diploid number. I thought they were supposed to end up with 1/2 the diploid number (the haploid number). But from what I'm getting the diploid number is achieved after telophase 1, then after telophase 2 there is another splitting, resulting in the 1/4 number of chromosomes.

2007-01-01 18:46:59 · 6 answers · asked by darcy_t2e 3 in Biology

2007-01-01 18:44:44 · 1 answers · asked by Gwen G 1 in Botany

1)Bharath borrowed Rs.20,000 partly from a friend at 12% SI and the remaining from the bank at 15% SI. At the end of 2 years, he paid back an amount of Rs.25,700. What is the amount that he borrowed from the bank?

2007-01-01 18:42:54 · 2 answers · asked by Anonymous in Mathematics

2007-01-01 18:41:32 · 2 answers · asked by Gwen G 1 in Botany

2007-01-01 18:41:21 · 5 answers · asked by Anonymous in Biology

2007-01-01 18:40:19 · 6 answers · asked by Anonymous in Biology

2007-01-01 18:40:00 · 5 answers · asked by Chase 4 in Weather

without any tolerance. I try to take painkillers like Vicodin and Codeine, but there's no effect at all. It doesn't even make me sleepy or relieve pain.

2007-01-01 18:38:53 · 4 answers · asked by Anonymous in Medicine

(2ab^2)^3
_________
-14(a^2b)^2

2007-01-01 18:36:03 · 2 answers · asked by Sally 1 in Mathematics

2007-01-01 18:35:23 · 4 answers · asked by w 1 in Medicine