Mathematics - 31 October 2007

Give a big-O estimate of the product of the first n odd positive integers.

2007-10-31 17:16:03 · 1 answers · asked by Jean-Francois 5

Find the slope of the tangent line to the curve
-1x^2+1xy-2y^3=-439
at the point (-1,6)

___

2007-10-31 17:04:38 · 1 answers · asked by Anonymous

This refers to circles that pass through points of the triangle, not necessarily given points on a coordinate plane.

2007-10-31 16:54:06 · 5 answers · asked by jkicker 3

is it 3/y??

2007-10-31 16:53:03 · 2 answers · asked by Anonymous

Okay. On neopets, I need to know this answer to get an Avatar, and some money!
Thanks.
Here is the question:
A Pteri with a light appetite could not finish his Rainbow Melt Pizza. In fact, he could only eat exactly half of it.

If the diameter of the pizza was 50cm, and the half-pizza was a perfect semicircle, what is the area of the smallest square box, in square centimetres, that could contain the half pizza? Please disregard the thickness of the box, round to the nearest whole number, and please only submit a number for your answer.

2007-10-31 16:38:50 · 7 answers · asked by Aqwah 1

Well can't find answer to this geometry problem, that is hunting me down!

How many sides does a convx polygon have when the sum of measure of all but one of its interior angles is 3080

Plz help

2007-10-31 16:37:44 · 2 answers · asked by ≡<S 1

Circle with a center of (-3, 1) and a radius of 3.

Also:
x = h + r*cos(p)
y = k + r*sin(p)

2007-10-31 16:36:37 · 2 answers · asked by Ryan P. 1

i dont understand this geometry solution

http://docs.google.com/Doc?id=dc83hzcs_269f55p6t

can you please clarify ?

2007-10-31 16:31:19 · 2 answers · asked by calculus 1

a race official is watching a racecar approach a finish line at the rate of 200 km/hr. Supposed the officla is sitting at the finish line, 20 m from the point where the car will cross, and let ø be the angle between the finish line and the official's line of sight to the car. At what rate is ø changing when the car crosses the finish line? give answers in rad/s.

2007-10-31 16:25:19 · 2 answers · asked by BigE-zy 2

elementary math

2007-10-31 16:24:05 · 1 answers · asked by ^_^leslie^_^ 1

Hi,

I need to calculate the integral of:

-2sin(t) * e^(2cos(t)) + cos(t) * e^(sin(t)) dt.

Is it just: 2cos(t) * e^(2cos(t)) + sin(t) * e^(sin(t))?


Thanks!

2007-10-31 16:22:17 · 3 answers · asked by Anonymous

2007-10-31 16:00:50 · 5 answers · asked by Jasmine 1

2007-10-31 15:59:47 · 12 answers · asked by Anonymous

the antiderivitive of e^(-t^2) cannot be found analytically. I have a graphing calculator that can take numerical integrals; even so, I cannot think of any way to solve the problem without looking at a table of values.

2007-10-31 15:59:17 · 3 answers · asked by CwCc 7

f(x) = (7)/(2+ln(5x))

2007-10-31 15:46:13 · 4 answers · asked by nahs1trumpet 1

find the derivative of

G (y)= (y-1)^4 / (y^2 + 2y) ^5

2007-10-31 15:43:32 · 7 answers · asked by Josianne 3

show rules used and all working, for full points! !

2007-10-31 15:37:16 · 5 answers · asked by Josianne 3

Somebody told me there was a trick to finding the GCF, greatest common factor, but they didn't know what it was. So is there a trick and if so, what is it? If not, can somebody direct me to a website that might help me.

2007-10-31 15:37:04 · 3 answers · asked by :s 2

show rules used and all working, for full points! !

2007-10-31 15:36:39 · 2 answers · asked by Josianne 3

what is the answer for this?

2007-10-31 15:24:57 · 5 answers · asked by Anonymous

The arch of a concrete bridge is a semiellipse having a span of 60 feet and a central height of 20 feet. If the roadway is a 25 feet above the base, findat 10-foot intervals the distance from the arch to the roadway.

2007-10-31 15:21:41 · 2 answers · asked by charm 1

A wire 80 cm long is cut into 3 pieces of lengths y, x and 80 − x − y and each piece is bent into squares. Find the absolute maximum and absolute minimum of the areas of these squares. Please help by showing me how you did it?

2007-10-31 15:17:19 · 4 answers · asked by cheri1286 2

2007-10-31 15:12:48 · 2 answers · asked by tmmz1107 2

2007-10-31 15:09:39 · 4 answers · asked by Anonymous

2007-10-31 15:08:02 · 3 answers · asked by Anonymous

2007-10-31 15:06:16 · 6 answers · asked by Anonymous

Int[x * sqrt(x+2)]
I end up with 1/du after substituting and it is not working.
Help!!

2007-10-31 14:45:12 · 3 answers · asked by Anonymous

Ok I was trying to explain this to my friend who is in differential equations, but i couldn't remember how to exactly do it myself.

The problem looks like it should be super easy

y" + 2y' + y = e^x

I know you have to find the solutions of the homogeneous part, which would be y(x)=ce^x (its a double root when you work it out)

But the problem i can't remember is how to figure out the "particular" solution. Could somebody refresh my memory on this?

2007-10-31 14:44:02 · 2 answers · asked by Anonymous

Paul invites 10 couples to a party at his house. He asks everyone present, including his wife, how many people they shook hands with. It turns out that everyone questioned--he didn't question himself, of course--shook hands with a different number of people. If we assume that no one shook hands with his or her partner, how many people did Paul's wife shake hands with? (Remember, Paul did not ask himself any questions)

Source: AcoPS (Zeitz)

2007-10-31 14:42:44 · 3 answers · asked by absird 5

Deffrientiate the above function please! show all working for full points! thanks!

2007-10-31 14:40:37 · 4 answers · asked by Josianne 3