Mathematics - 21 July 2006

1 can be expressed as difference of two squares.
express1as difference of two cubes.(real numbers pls.)

2006-07-21 18:34:40 · 5 answers · asked by rajesh bhowmick 2

CONVERSON OF KNOTS TO MILES

2006-07-21 17:42:28 · 6 answers · asked by MORRIS J 1

[r^(p-q)] = (p/q)^1/(p-q)

plz tell me how left hand side is equal to right hand side

tanx
tom

2006-07-21 17:26:25 · 5 answers · asked by remo 2

a.>=21 b>22 c.>=23 d.>24 (1 year has 365 days)

2006-07-21 17:09:40 · 3 answers · asked by Anonymous

a.>=21 b.>22 c.>=23 d.>24 (1 year has 365 days)

2006-07-21 17:05:08 · 4 answers · asked by guitarkhongday 1

The limit of x goes to positive infinity of
1/4*(1/3+1/8-1/(n+1)*(n+4) )
Thanks

2006-07-21 16:37:15 · 9 answers · asked by Slam 2

here's a word problem i need help with...

an unfortunate accident happens on a plane and a man/woman is falling from a heighth of say... 800 feet..... while falling with thier face toward the sun (as if your back would hit the ground first)... the man/woman is holding their child closely to their chest... approximately 10-20 feet before hitting the ground, the man/woman hurls their child upward into the air, thus resulting in slamming into the ground onto their back.... would the child be alive?? would they just suffer the damages of a 10- 20 foot fall??? or would it not even matter.... can anyone help??

2006-07-21 16:29:03 · 9 answers · asked by chopstik 2

2006-07-21 16:18:54 · 21 answers · asked by Sabrina M 1

WHat formula formed the number e and why is it important? Is there any other use for that formula other than finding e?

2006-07-21 15:33:56 · 25 answers · asked by Anonymous

5 1/3 + 2 1/4+ 3 1/2=

12 3/8 % of intrest and went up 14 1/4%. how much precentage points did the interest rate increased.

2006-07-21 14:41:01 · 11 answers · asked by Anonymous

dont forget the "!" thats a mathematical symbol so give me your answer to that, and this is a password, so give me another answer that relates to it.

2006-07-21 14:07:37 · 14 answers · asked by bobathan229101 1

I will try to attempt to answer these question if I miss a step could someone please correct me and let me know what step I am missing....
1/3+5/12+4/5= 10/12

13/15-11/20= 2/5

1 1/15+ 3 3/10- 2 4/5= 2 1/5

estimating

17 11/12 divided by 6 1/10 =3 1/2

2006-07-21 14:06:34 · 5 answers · asked by Anonymous

Okay thanks for all of the help everyone but I have another that I just cant seem to get.....

One task took 7 minutes, a second task took 12 min, and another took 21 min.. How long did the three taks take as a fration of an hour?

do I add 7+12+21= 40/60 min divided by 10/10= 4/6 dived by 2/2=2/3 is this correct or am I missing somthing.

2006-07-21 13:55:47 · 9 answers · asked by Anonymous

..... When will Harry Potter spontaneusly combust???

PLEEEASE help me with this one, it's stumped me and everybody I know, I've been trying to think of an answer for DAYS!

2006-07-21 13:53:28 · 12 answers · asked by Not Dave 2

2006-07-21 13:39:30 · 9 answers · asked by Kendyl 2

give me any answer relavant to this question.

2006-07-21 13:33:05 · 9 answers · asked by bobathan229101 1

The altitude of a triangle is increasing at a rate of 1cm/min while the area of the triangle is increasing at a rate of 2cm^2/min. At what rate is the base of the triangle changing when the altitude is 10cm and the area is 100cm^2?

2006-07-21 12:47:31 · 3 answers · asked by V/D West 3

My "trapazoidal lagoon" is a holding pond shaped like a trapazoid. The bottom measures 614ft x 415ft. If the depth of the water increases one foot the surface dimensions increase by 6ft. How can I calculate the cf in the pond for a given depth.

2006-07-21 12:15:17 · 2 answers · asked by Anonymous

This has been haunting me. I really need the answer and an explanation.

2006-07-21 11:52:40 · 4 answers · asked by Anonymous

2006-07-21 11:38:31 · 24 answers · asked by Kendyl 2

I don't know how to do it since it has a whole number invloved as well.

20 5/6% = ??

2006-07-21 11:31:11 · 12 answers · asked by Anonymous

2006-07-21 11:21:41 · 10 answers · asked by Sidereality 3

What formula is used to find the surface area of a right circular cylinder?

2006-07-21 11:04:46 · 11 answers · asked by cherrypie p 3

a = b
a2 = ab
a2 - b2 = ab - b2
(a - b)(a + b) = b(a - b)
a + b = b
2 = ?

2006-07-21 11:03:25 · 8 answers · asked by Й†ćĶ 2

I have a trapazoidal lagoon and would like to calculate the cf of water it will hold. Does anyone know the formula?

2006-07-21 11:03:15 · 3 answers · asked by Anonymous

2006-07-21 10:50:13 · 11 answers · asked by Anonymous

Pls tell me how can I transform the kilogrames into lbs and metres into feet and inches, please? I really don't know...

2006-07-21 10:30:28 · 8 answers · asked by Anonymous

Train A is at Station T, and Train B is at station U. The distance between Stations T and U is 800 km. Train A started to move from Station T to Station U at 1 pm with initial time t=0, and train B started to move from Station U towards station T at 2:45 pm, with an initial acceleration of 11m/(s^2). As the two trains meet, which one will be the nearest to station T?

the equation of speed of train A is v= (t^2) + 6t +9
the equation of speed of train B is v= 3(t^2) + 11t +10

The first one with the simplest way of solving this question wins the 10 points.

2006-07-21 09:51:41 · 20 answers · asked by Anonymous

One for you math boffins.

2006-07-21 09:42:19 · 23 answers · asked by lonely as a cloud 6

A severely ill patient is given an intramuscular injection of a highly potent antibiotic agent. It is known that the blood concentration, C, measured in micrograms per cc of the agent, increases according to the formula C = 2t/(t^2 + 9), where t is measured in hours after the time of injection. Correct to the nearest tenth of an hour, when will the concentration be maximal?

2006-07-21 08:48:23 · 9 answers · asked by Olivia 4