Mathematics - 3 December 2007

2007-12-03 01:32:03 · 10 answers · asked by Anonymous

a swimming pool can be filled by a pipe in 10 hours if the drain is opened. if the pipe was allowed to run with the drain for 2 hours, and the drain is closed afterwards, it would require the pipe 4 more hours to fill the tank. how long would it take the pipe to make the tank full if the drain is closed from the start?


i need step by step procedure, again..

pls answer....NOW!!!!!
PASS TOMORROW DEC.4 2007...!!!!!!

ARIGATO GUSAYMASU!!!

DOMO ARIGATO!!!

2007-12-03 01:23:16 · 5 answers · asked by Chidori Kaname 2

What is the definte integral of:

3xdx over the inberval [5,0]

2007-12-03 01:23:12 · 2 answers · asked by Shoe Girl 2

"In an engine, a connecting rod 18 cm long is fastened to a crank of radius 6 cm at point P. The crankshaft rotates counterclockwise at a constant rate of 200 revolutions per minute. The horizontal velocity (cm/min) of point P is:
v = -2400πsinθ
where θ is the central angle of the crankshaft. What values of θ produce a maximum horizontal velocity?"

2007-12-03 01:10:32 · 1 answers · asked by slowandsteadydoesntwintherace 1

{3x - 5y = 5
{2x - 5y = 5

a. (0, -1)
b. (-1, 0)
c. infinite number of solutions
d. no solution

2007-12-03 00:22:12 · 4 answers · asked by . 1

Find the general solution. Give the real form. (2nd order linear diff eq)

1) 2y" + 3y' = 0

2) y" − y' − 30y = 0

show work/steps plz..thanks!

2007-12-03 00:16:08 · 1 answers · asked by Anonymous

{y = 4x + 9
{y = 7x + 8

a. (31 / 3, 1 / 3)
b. (1 / 3, 31 / 3)
c. infinite number of solutions
d. no solution

2007-12-03 00:15:57 · 5 answers · asked by . 1

I was doing my Hw and I cant seem to solve these three trig equation...please help

1.) 2sinx +1 =csc x ; interval 0< or = to x
2.)Cos X= Sin X ; interval 0< or = to x < pi

3.)12Cos2x-16sin^(2)X=0 ; interval 0< or = to x < pi

2007-12-03 00:04:27 · 3 answers · asked by hilanger23 1

how we can fix this, is there any editor to input numbers in number format.. or any method to use these as numbers in single line editer.

2007-12-03 00:00:13 · 1 answers · asked by nokiya b 1