Mathematics - 26 December 2007

thats pounds not dollars!!

2007-12-26 23:37:32 · 35 answers · asked by R 1

please explain to me using the power rule, how this answer is given:

d/dx (1/x) = d/dx (x ^ -1)

i don't understand how the x got in the front. is the x considered the n in the power rule equation:

d/dx (x ^ n) = nx ^ n-1

2007-12-26 22:49:20 · 5 answers · asked by kay l 2

2007-12-26 22:48:00 · 8 answers · asked by Anonymous

if x = tan@ + sin@, y = tan@ - sin@

prove x^4 + y^4 = 2xy(8 + xy)


I tried just sub in the equations but ended up with something weird like having to prove tan^2@ - sin^2@ = tan^2@sin^2@

can anyone show me the steps?

2007-12-26 22:30:26 · 3 answers · asked by wendywei85 3

2007-12-26 22:07:07 · 14 answers · asked by princess 2

2007-12-26 20:57:04 · 15 answers · asked by Ashish Jain R 1

2007-12-26 20:26:33 · 7 answers · asked by rich5270 1

If a cannon fires so that its height in feet after t = seconds is given by h = -4t^2 + 16t + 5, when is the cannonball at its highest point, and what is the maximum height the cannonball attains?

2007-12-26 20:05:51 · 6 answers · asked by rewonderland 1

if 30 is divided by 1/2 then the answer is added with 10, what would be the final answer?

2007-12-26 19:58:03 · 19 answers · asked by Anonymous

its a mathematics based question. Lets see who can solve it. Its a challenge from a seventh class student using her sister's id. Wanna take it????????

2007-12-26 19:40:09 · 8 answers · asked by Anonymous

There was a ad on the newspaper and they were giving a floor size of a store but is 10m^2 mean that the dimensions are
10 x 10? So the area would be 100m?

2007-12-26 19:40:08 · 12 answers · asked by . 3

Please kindly give one example for 'Hypotonuse'\
Thanks a lot.

2007-12-26 18:55:04 · 10 answers · asked by Kwok Ping H 2

2007-12-26 18:51:01 · 12 answers · asked by mathstudent 2

Find the area of the cardboard. use the law of sines or cosines

2007-12-26 18:47:39 · 6 answers · asked by jessay 2

I heard somewhere that on some ultra high level DesCartes / Gaussian / Fourier / Eigen Valueblahblah / Chuck Norris mathematical level that TECHNICALLY you can divide by zero, and wanted to know where this is possible. I recall that it might have also had something to do with an algorithm that the number 'one' does not exist. If you ask me, I just think it proves how flawed the decimal-based number system is... Any ideas???

2007-12-26 18:09:28 · 18 answers · asked by ne0heli0s 2

2007-12-26 18:08:40 · 4 answers · asked by Anonymous

if a / sinA = b / cosA, show that

sinAcosA = ab / (a^2+b^2)

2007-12-26 18:08:13 · 2 answers · asked by wendywei85 3

2007-12-26 18:04:53 · 5 answers · asked by Anonymous

2007-12-26 17:12:52 · 5 answers · asked by Anonymous

2007-12-26 17:00:37 · 15 answers · asked by Anonymous

how do i figure out how many gallons are in an aquerium how do I do the math equasion? length,height,width what do i do with it

2007-12-26 16:52:29 · 6 answers · asked by Anonymous

december 28,2007 14:53:47 PST into eatern time

2007-12-26 16:50:10 · 6 answers · asked by Anonymous

2007-12-26 16:42:12 · 12 answers · asked by Jerry B 1

please help and explain!? i dont get this!!!


What is the coefficient of a^4b^6 in the expansion of (a + b)^10?

2007-12-26 16:30:08 · 3 answers · asked by anna 1

2007-12-26 16:22:34 · 1 answers · asked by Sparkle 3

2007-12-26 16:17:47 · 7 answers · asked by elindio 1

2007-12-26 16:01:20 · 9 answers · asked by elbert o 1

Collect xs on the LEFT side. The solution should be presented with x first, the correct inequality symbol, then the number.
2(x + 1) > 12

2007-12-26 15:59:24 · 9 answers · asked by Anonymous

I was able to do this before but can't follow my steps.

Some help would be awesome!

Thank you so much!

2007-12-26 15:36:56 · 8 answers · asked by Anonymous

PLEASE!!!!! You are saving my but can you please help me wtih this math work... these are the ones that i am having tons of trouble with.... when I put ^426 before the √ it is because there is a little 426 in front of the square rooted number...

#1. ^426 √ (a + b)^426

#2. Rewrite with rational exponents: ^4 √xy^3z

THANK YOU SOOO MUCH!!

2007-12-26 15:19:24 · 3 answers · asked by Tank 2