Mathematics - 22 September 2006

if a=b
a*b=b*b
ab -a(sq.) = b(sq.) - a(sq.)
a(b-a) = (b+a)(b-a)
a = a+b
putting a=1
1=2

2006-09-22 23:17:07 · 9 answers · asked by arch 1

2006-09-22 22:50:34 · 12 answers · asked by techdog5 1

A rectangular tank,measuring 64cm by 50cm by 40cm,is 3/4 filled with water.If the water is drained out at a rate of 12 litres per minute,how long will it take to empty the tank?(1litre=1000cm3)

2006-09-22 22:27:09 · 16 answers · asked by tocatchtheuncatchableii 3

A bat man has a certian average of runs for 12 innings in the 13th inning he scors 96 runs thereby increasing his average by 5 runs . what is the average after the 13th inning?

2006-09-22 22:18:42 · 10 answers · asked by Sharik 2

Susan made some muffins for sale.She packed 2/5 of them in 2 large boxes and 1/2 of them in 4 small boxes.The rest were not packed .Each large box contained 21 more muffins than each small box.How many muffins were not packed?

2006-09-22 22:16:17 · 10 answers · asked by tocatchtheuncatchableii 3

John had some 50cent and 10cent in a box.The number of the 50cent coins to that of the 10cent coins was in the ratio of 5:3.John took out five 50cent coins and replaced them with a number of 10cent coins of equal value.The ratio of the number of 50cent to the 10 cent coins became 1:2.Find the sum of money in the box.

2006-09-22 22:12:57 · 5 answers · asked by tocatchtheuncatchableii 3

Saleem got 600 marks aout of 800 marks in class X while his youngersister Asma got 325 marks out of 400 marks in class VIII . Who scored better ?

2006-09-22 22:05:32 · 4 answers · asked by Sharik 2

Alex and David had a bicycle race.Alex cycled at a speed of 12km/h and David cycled at a speed of 16km/h.David let Alex start 40 minutes before him.At what time would David catch up with Alex if Alex started at 8.00a.m.

2006-09-22 21:43:44 · 13 answers · asked by tocatchtheuncatchableii 3

72 pupils from Evergreen School sold a total of 1260 tickets.1/6 of them sold thesame number of tickets each and the rest of the pupils sold 4 times as many tickets as each of the pupils in the first group.How many tickets did each child in the second group sell?

2006-09-22 21:36:55 · 16 answers · asked by tocatchtheuncatchableii 3

the first two digits are divisible by 2,the first 3 digits by 3,the first 4 digits by 4 and so on till 10.i.e.,the last digit will obviously be zero. Also, all the 10 digits are unique and non repeating

2006-09-22 21:17:21 · 6 answers · asked by tushar.kamal 1

hi..can anyone tell me a site where i can learn how to do the sine, cosine and tangent of a triangle. i have a physics test tomorrow and i have no idea how to do it and its explained really hard in my book. so is there an easy way to learn it?

2006-09-22 20:53:00 · 13 answers · asked by xxlovexx 1

example : 1+2+4+5=12 here i used 1,2,4,5 once to make 12

2006-09-22 20:40:58 · 4 answers · asked by Anonymous

2006-09-22 19:58:07 · 2 answers · asked by Anonymous

A greyhound pursues a hare and takes 4 leaps for every 5 leaps of the hare, but 3 leaps of the hound are equal to 4 of the hare; compare the speeds of the hound and the hare.

2006-09-22 19:18:20 · 5 answers · asked by wud_luv2know 1

its graphed and its points are (1,5) (6,9) (0,0) (5 -3)
how do i find the coordinates of where it intersects?

please include step by step explanation
thx

2006-09-22 18:58:27 · 6 answers · asked by Icy 2

what's the lowest number wich is divisible by the numbers (1,2,3,4,5,6,7,8,9,10 ) ....

2006-09-22 18:31:51 · 8 answers · asked by M. Abuhelwa 5

The answer is 6467. Now I want to know why. :)

Here's a hint - think multiplication...

2006-09-22 18:07:22 · 5 answers · asked by tiggergoesbouncebounce 2

2006-09-22 18:02:08 · 16 answers · asked by Anonymous

Mathematica's Integrator found the answer to be

x + 0.4 ln(x-0.4) - 0.4

I'm assuming the answer's right, but I need to know how they got it. I've searched integral tables, but have not found anything similar and I couldn't integrate by parts (unless I did it wrong). I need the integral as part of a larger fluid mechanics problem, but I haven't done this type of integration in years.

2006-09-22 17:50:09 · 8 answers · asked by mecdub 7

2006-09-22 17:38:08 · 19 answers · asked by Anonymous

Use the Quadratic Formula to answer it

2006-09-22 17:24:11 · 12 answers · asked by Jamie B 1

2006-09-22 17:18:51 · 16 answers · asked by Joel Ticlavilca 1

2006-09-22 17:17:53 · 16 answers · asked by Bob 3

Can I get some help with these please?

(9/5)/(2/3)

[(2x)/(x + 7)] + [(4)/(x + 4)]

[(x + 5)/(x + 2)] + 4

[(2x - 2)/(x - 8)] + x + 5

(-2b - 9)/(b2 + 7b + 12) = b/(b + 3) + 2/(b + 4)

1/(y - 4) - 2/(y - 8) = -1/(y + 6)

2006-09-22 16:39:09 · 10 answers · asked by reid296 2

2006-09-22 16:02:50 · 14 answers · asked by un_taimed18 1

Could anyone do these and explain how they're done, please?

r/(3r + 6) = r/(5r + l0)

Use d = rt to solve: A long distance cyclist pedaling at a steady rate travels 30
miles with the wind. He can travel only 18 miles against the wind in the same amount of time.
If the rate of the wind is 3 miles per hour, what is the cyclist's rate without the wind?

2006-09-22 16:01:07 · 3 answers · asked by reid296 2

2006-09-22 15:43:12 · 17 answers · asked by pralok t 1

2006-09-22 15:41:41 · 3 answers · asked by small 7

2006-09-22 15:31:36 · 11 answers · asked by Anonymous

I have to use the foil method to solve it and I know how to multiply it but what do I do after that

2006-09-22 15:30:32 · 8 answers · asked by Jamie B 1