Mathematics - 26 July 2006

i don't understand the series expansion of e^u :

e^u=1+u+u^2 /2!+u^3/3!+u^4/4!+............

please explain me.

2006-07-26 23:51:12 · 4 answers · asked by star123 2

With a quadratic equation that can be factorised is it true to say that a times b = c? Is it really that simple?

2006-07-26 22:46:28 · 6 answers · asked by Anonymous

2006-07-26 22:39:58 · 11 answers · asked by bond 1

Mary has a school project – a fund raising program. She has to sell 20 tickets , 2 of a kind the Php100 & Php200 tickets. She sold all the tickets and earned Php 2,500.00, but she forgot how many pcs of Php100 & Php200 tickets she has.

2006-07-26 21:38:31 · 7 answers · asked by Lennon TheNewsBassist 1

2006-07-26 21:37:51 · 2 answers · asked by Ankit S 1

2006-07-26 21:19:50 · 8 answers · asked by dwj 2

In a hat are 200 numbers -- each of the numbers 1 through 25 occurs 8 times. You pick three numbers from the hat without replacement. What is the probability that all three of the numbers are 25?

2006-07-26 21:02:35 · 12 answers · asked by Lennon TheNewsBassist 1

While doing caculations, I have just discovered the lowest number, when squared, the EQUASION SQUARED & REQUIRES ALL TEN NUMERALS! ANSWER IS: 33,144 X 33,144 = 1,098,524,736! {0123456789}.
(from lowest to highest) 63x927is58401, aka Math_Maestro.

2006-07-26 20:44:59 · 3 answers · asked by Math_Maestro 7

2006-07-26 20:25:06 · 6 answers · asked by writetovagelis 1

I am modeling HO (1:87) scale trains. A scale mile is approximately 60.68 feet. How long, in real time, should the model take to traverse this distance to cover the distance at a scale 10 MPH, or 30 MPH, and so on. I know there has to be a simple formula for making these calculations, but, I really didn't pay much attention in math class. Help me out here, please.

2006-07-26 19:42:08 · 4 answers · asked by Samurai Hoghead 7

2006-07-26 19:36:54 · 12 answers · asked by Vanchit S 2

Eth, Meth, Pro, Bu, Pen (maybe Pent), Hex, Hep, Oct (maybe Octa) etc..?

2006-07-26 18:02:10 · 5 answers · asked by Ben S 3

...Given the coordinates of the point on the graph of f where the tangent line is parallel to y= x+12...


In the previous problem it told me to determine the tangent line at x=4... so the tangent line= y= 1/5(3x+ 13) at x=4.. but how would i do the problem above?

2006-07-26 17:59:36 · 5 answers · asked by Silver Bells 1

x>2+y y>1

2006-07-26 17:32:19 · 4 answers · asked by bp13 1

The problem is i am a four digit number 3 of the digits are the same the sum of the digits are 28 if rounded to 10, 100, 1000 i am still the same number....

2006-07-26 17:29:14 · 6 answers · asked by mexmami79 1

If i am rounded up to the 10th or 100th or 1000th i am still the same number

2006-07-26 17:16:21 · 11 answers · asked by mexmami79 1

Also,how do I get the scanned maths questions onto this or any other website? Thank you.

2006-07-26 16:48:48 · 2 answers · asked by mathsblur 1

ive got e^(-x^2) and f'(x) = e^(-x^2)-2x using the chain rule. But then how would I find what x is to get f'(x) to equal 0?

2006-07-26 16:32:13 · 6 answers · asked by Ed F 1

How do i go about finding the 1000th derivative of a function: xe^-x

2006-07-26 16:12:59 · 9 answers · asked by Les L 1

2006-07-26 16:12:33 · 20 answers · asked by Anonymous

2006-07-26 16:11:02 · 6 answers · asked by ashka e 1

Ah, the ratio of a circle's circumference to its diameter, how quaint. But why the heck is this number so significant in so many other equations that explain our world? Why Pi?

2006-07-26 15:07:46 · 9 answers · asked by requiem42 2

f(x) - f(p)/x - p
To: f(x) = x² - 3x , p = -2

Thanks!!!

2006-07-26 15:01:34 · 4 answers · asked by Ricardo 1

98x56/the square root of 529 and - (78x45x34) and divided in half and multiplied by itself. HELP!

2006-07-26 14:32:54 · 12 answers · asked by Alli R 2

2006-07-26 14:32:38 · 3 answers · asked by tq 3

2006-07-26 14:16:27 · 4 answers · asked by Anonymous

The directions say: Evaluate the expression.

1) -12 ^ -2

Would I put a 1 over the -12 and make the exponent of -2 posative 2?
As in:
1/(-12)^2

If I am correct with that, can I go one step further and make the fraction 1/(-144)?

2006-07-26 14:05:41 · 5 answers · asked by Brain 3

2006-07-26 14:02:21 · 8 answers · asked by crookie monster 1

I am in 7th grade. I am getting only 11 / 20 and 11 and a half/20.

2006-07-26 13:54:14 · 13 answers · asked by Gita 3

E= mc squared

2006-07-26 13:28:45 · 16 answers · asked by sad but cute 2