Mathematics - 25 July 2007

5/8
11/16
23/30
7/8

2007-07-25 14:55:00 · 10 answers · asked by bihottie15 1

The region bounded by y = 2 + sin x, y = 0, x = 0, and 2pi is revolved about the y-axis. Find the volume that results.

Hint: ∫x sin x dx = sin x - x cos x + C

Volume of the solid of revolution:_________

2007-07-25 14:51:09 · 2 answers · asked by Anonymous

Find the area of the region.

(Sketh the region enclosed by the given curves. Decide whether to integrate with respect to x or y).

2007-07-25 14:42:26 · 1 answers · asked by Anonymous

x^4+2x^3-9x^2? is this correct

Thanks!!

2007-07-25 14:20:20 · 3 answers · asked by Jacesmom 2

Science and medicine. Mika leaves Boston for Baltimore at 10:00 A.M., traveling at 45 mi/h. One hour later, Hiroko leaves Baltimore for Boston on the same route, traveling at 50 mi/h. If the two cities are 425 mi apart, when will Mika and Hiroko meet?

2007-07-25 14:20:12 · 2 answers · asked by Nevarheals 1

(3/11, -1/11)?? is this correct

2007-07-25 14:03:29 · 2 answers · asked by Jacesmom 2

Describe each sequence recursively. Include initial conditions and assume that the sequences begin with a(1).

a(n) = the number of bit strings of length n with an even number of 0s

2007-07-25 13:57:23 · 2 answers · asked by I am logged in, therfore I am. 2

How do I find an expression for an equation of a plane that passes through the point (0,0,a) and contains the line x=t, y=1-t, z=0 with the expression being in terms of a?

2007-07-25 13:54:55 · 2 answers · asked by Mr. Smith 1

Is it only possible for a median of a set of numbers to be detemined if the set of numbers is arranged from least to greatest?

2007-07-25 13:49:13 · 10 answers · asked by Jake P 2

2007-07-25 13:47:06 · 6 answers · asked by Anonymous

statistics

2007-07-25 13:46:30 · 1 answers · asked by nath 1

USe geometry(not Riemann Sum) to compute the integral.

1. {14,12 xdx
2.{1,0 39 square root 1-x^2 dx
n=10, n=100, n=1000

2007-07-25 13:27:38 · 4 answers · asked by poncg004 1

the 4th root (like cube root) of 162 c^2 d^6

2007-07-25 13:24:19 · 4 answers · asked by Helpful? 2

Have scientists/professors/mathmaticians studied this theory? Does it have any legitimacy or is it just urban legend? Please include links.

2007-07-25 13:21:55 · 2 answers · asked by Ask Mike 4

I hate graphing parabolas, the teacher didnt show me how. I screwed up in Algebra 1 in the school and now in summerschool I am. please show me how in detailed steps and be bery clear... thanks.

2007-07-25 13:08:13 · 6 answers · asked by Poseidon 2

Solve the system by addition or substitution. If a unique solution does not exist, state whether the system is inconsistent or dependent.
10x + 2y = 7
y = -5x + 3

What!

2007-07-25 13:02:40 · 5 answers · asked by busy me 2

How do you find the cube root of any number without using a calculator or any electronics (with pencil/paper)?

Please show steps =D

2007-07-25 12:51:36 · 5 answers · asked by Anonymous

Solve the following proportion for w:

-12/w=-15/w-1


Thank you in advance!

2007-07-25 12:48:39 · 5 answers · asked by Anonymous

2007-07-25 12:42:53 · 7 answers · asked by peaches 1

This one has lost me

2007-07-25 12:40:35 · 3 answers · asked by abercrombi_4_me 1

2007-07-25 12:38:30 · 7 answers · asked by Anonymous

Something about a^3 + b^3 factors into something else...

2007-07-25 12:35:26 · 6 answers · asked by Like Woah 3

I need to think of some really good ideas for this years math fair project. If you give me any ideas make sure it is something that can be explained. Any help anyone can give me will be thanked. And if i win with one of your answers i will make sure you know aboout it through Yahoo. Thanks for any answers givin.
Lilveedubgirl

2007-07-25 12:32:58 · 7 answers · asked by Andrea B 2

2007-07-25 12:28:19 · 9 answers · asked by peaches 1

x - 1
------ ≥ 0
x + 2

Thanks...and the greater than or equal to symbol code is
& g e ;
with no spaces.

2007-07-25 12:23:53 · 2 answers · asked by jaz 5

Can someone show me how to find the integral of:
sin(sqrt(x)) dx.
Thanks!

2007-07-25 12:21:37 · 3 answers · asked by Anonymous

Factor the quadratic expression:

w^2 + 8w +16

Thanks for the help!!

2007-07-25 12:21:30 · 8 answers · asked by Anonymous

common fraction or mixed number to lowest terms 15.35

2007-07-25 12:11:36 · 4 answers · asked by turlington999 1

2007-07-25 12:11:26 · 3 answers · asked by peaches 1

directions- change this number to a fraction or mixed number in simplest form.

12 1/2

2007-07-25 12:07:29 · 15 answers · asked by nyannah b 1