Mathematics - 29 October 2007

2007-10-29 10:15:45 · 15 answers · asked by lil-pwincess 2

I have tried everything but I just cannot do it. Its driving me crazy!

It's the following:

8 quarts of cider were left in the punch bowl after the Halloween party. If, in addition, to the punch bowl, Shane and Kris had only 5-quart and a 3-quart container, how could they split the 8-quart evenly?

2007-10-29 10:14:07 · 4 answers · asked by lugjol 1

Find the points at which the graph of the equation has a vertical or horizontal line:

25x^2 + 16y^2 + 200x -160y + 400 = 0

Need working out too please.

2007-10-29 10:08:05 · 4 answers · asked by Raja A 1

2007-10-29 10:08:03 · 6 answers · asked by angel 1

i need to know the answer to this problem
Fill in the blanks:
1, 1, 2, 3, 5, 8, 13, __, __

thanks in advance!,
taylor

2007-10-29 09:57:40 · 6 answers · asked by Anonymous

Please explain.

2007-10-29 09:53:24 · 9 answers · asked by lavorsker m 1

2007-10-29 09:48:24 · 3 answers · asked by Anonymous

3lnx - ln3x + ln(12x^2)

explain how to do this please?

2007-10-29 09:42:20 · 4 answers · asked by Anonymous

2007-10-29 09:36:52 · 9 answers · asked by kerrysueluvsyou 1

18. x^2+2x=13
20. 0=x^2-6x+3
22. 0=x^2-3x-6

2007-10-29 09:33:16 · 3 answers · asked by Diamond E 1

I have 5 integrals that I'm working on and I need everyone's help on these problems thank you very much who can answer these.
#1. The indefinite integral of (dx)/(1+sinx+cosx). (Hint: Let u= tan(x/2).
#2. The indefinite integral of (sqrt Tanx) dx
#3. The indefinite integral of sqrt(x-1)/sqrt(x+1) * 1/x^2 dx
#4. The indefinite integral of (dx)/(x^6-1).
#5. The indefinite integral of (x^2-1)/(x^4+3x^3+5x^2+3x+1) dx

Please I want to know every little detail of what you did in each part of the problem not just the answer. Once again I thank you for helping me if anyone should solve these integrals.

2007-10-29 09:33:06 · 2 answers · asked by Roger P 2

Do I shade a certain side !? AH I need help!

2007-10-29 09:32:51 · 6 answers · asked by La Belle x3 2

Verify (2cos3x)(sinx)= (2sinx)(cosx)-(8cosx)(sin^3x)

I've been working on this question forever and can't seem to figure it out. Would appreciate any help.

2007-10-29 09:28:29 · 1 answers · asked by ace33 1

1. what is the inverse of the function f(x)={(6,27),(7,15),(11,5)} ??


2. what is the domain of the function:
y= sqrt(x+4)+2?

2007-10-29 09:24:08 · 2 answers · asked by Ayy Girl! 1

Please give steps, details, reasoning, and sources please; I'm working on my discovery of the 11th dimension

2007-10-29 09:22:46 · 1 answers · asked by Elise C 2

I have a quiz on this stuff but I was in the hospital getting my appendix out during this lesson. These are the sample problems my professor gave me to look out to help prepare me but my books are in my dorm and I can't find this stuff online anywhere! Please help!!!!!!

1.) Find the area of the region bounded by the given curve:
r= e^theta
on the interval:
(6/3)pi is less or equal to Theta is less or equal to 2pi

2.)Find the area of the region bounded by:
r = 8 - 5sintheta

3.) Find the area of the region inside:
r = 9sintheta
but outside:
r = 4

4.) Find the area of the region bounded by:
r = 10cos2theta

5.) Find the area of the region bounded by:
r^2 = 72cos2theta

6.) Find the area inside the loop of the following limacon:
r = 10 - 20sintheta

7.) Find the area of the region outside:
r = 5 + 5sintheta
but inside:
r = 15sintheta

Thanks! Any help on how any of these are done would be awesome!!!

2007-10-29 09:19:09 · 1 answers · asked by Alysse 1

2007-10-29 09:10:46 · 6 answers · asked by Anonymous

2007-10-29 09:04:56 · 8 answers · asked by Gotti 1

40% female, 3male replaced by female to 44% female how many more males than females are in the original
10
12
15
18
20

2007-10-29 09:04:29 · 6 answers · asked by jennifer 2

ok guy i finally ask a calculs 1/ general mathematics question lol.will post more!

2007-10-29 09:01:41 · 2 answers · asked by Josianne 3

2007-10-29 09:01:24 · 3 answers · asked by RogerDodger 1

You receive a penny on January 1st, two cents the next day, four cents the next day, and so on, doubling every day. How long will it take to be a millionaire? Suppose you started wtih a nickel and doubled, how long before you were worth a million dollars?

2007-10-29 09:00:44 · 8 answers · asked by SM 2

what's 2,193 divided by 43

2007-10-29 08:59:38 · 2 answers · asked by cuddlbunny2003 2

I understand that n n < ln (n) < n^2 and that n^p is convergent if p > 1. Where do I proceed from there?

2007-10-29 08:59:25 · 1 answers · asked by Mitur 2

Please help ASAP!

2007-10-29 08:59:04 · 4 answers · asked by SM 2

An airplane flies 1000 miles due east in 2 hours and 1000 miles due south in 3 hours. What is the average speed of the airplane?

2007-10-29 08:46:12 · 7 answers · asked by Anonymous

differentiate (generalized power function rule)

y = 1/sqrt(3x^2 + 7)

the rule says:

f'(x) = n[g(x)]^n-1 g'(x)

i dont see how this applies to that example? could someone give me a hint, please lol

2007-10-29 08:43:06 · 3 answers · asked by Mathema-what?! 1

For my math homework

2007-10-29 08:35:53 · 9 answers · asked by Anonymous

For this problem, we are asked to find the points on the curve where the tangent is horizontal or vertical.

1. x = Cos(3t), y = 2sin(t)


I know that dy/dt = 2Cos(t) and

dx/dt = -3sin(3t)


And that you set dy/dt equal to 0 to find the horizontal tangents, and dx/dt equal to 0 to find the vertical tangents. However, I am wondering what are the correct restrictions to apply in each case (for dx/dt and dy/dt) to find the correct number of the respective horizontal and vertical tangents. For instance, since dy/dt involves cosine, would I restrict it to values between 0 and pi (including these endpoints as well) and thus end up with a result that the horizontal tangent only occurs at pi/2, since this is the only location within the interval between 0 and pi where the cosine is 0?

Similarly, for dx/dt, since it involves sine, would I restrict it to 0 to pi/2 (including these endpoints as well) and thus say that the vertical tangents occurs at 0 and pi/3 (pi/3 because of the 3 in the expression, which cancels out with the 3 in pi/3 making it just pi, where sine is 0) because these are the only points in the given expression where the sine is 0 for the interval of 0 to pi/2?

Is all of this correct? If not, please indicate what are the correct restrictions to apply in each case (dx/dt and dy/dt), and why they are not what I listed above.

2007-10-29 08:32:10 · 1 answers · asked by Vortex 1

There is 12 coins which look the same but one of them weigh differently (heavier or lighter). How can you determine in only three weightings which coin is different and if it is heavier or lighter?

2007-10-29 08:30:34 · 4 answers · asked by Arjun C 2