Mathematics - 15 October 2007

Approximate the sum of the series correct to four decimal places.
E,n=1, ((-1/8)^n)*n

2007-10-15 06:56:25 · 1 answers · asked by sugardaddy8815 1

http://i2.photobucket.com/albums/y48/xxkrystinaxx9/asd.jpg

Here is the picture because i dont know how to write that out on the computer, hehe =)

-Thanks

2007-10-15 06:53:12 · 3 answers · asked by Anonymous

?

2007-10-15 06:41:31 · 3 answers · asked by v19 2

It is easy to see how critical thinking applies to sociology, political science, literature, etc, because these fields allow for diversity of opinion. Math on the other hand is not really based on opinion.

Does critical thinking apply to mathematics, and if so how?

This is an open ended question, so feel free to elaborate.

2007-10-15 06:40:30 · 4 answers · asked by Dr D 7

How do I Solve the following equation for by using the quadratic formula:

3x^2 - 3x - 7 = 0

(If there is more than one solution, separate them with commas.)

2007-10-15 06:31:48 · 7 answers · asked by shauna s 1

2007-10-15 06:24:33 · 5 answers · asked by shruti d 1

I have to make blueprints for my math class. I have to put down the perimeter and area for each room. Well, now I have a problem. The bathroom. How do I write the perimeter (has to be ? x ? format (say 5 x 10))

Here's a picture. http://i184.photobucket.com/albums/x253/calfan5/blueprints002.jpg

2007-10-15 06:14:44 · 4 answers · asked by Mako 7

If I have four equal measures for the sides of a base of a pyramid, how can I determine the height?

2007-10-15 06:00:34 · 2 answers · asked by d3wthed3w 1

A. 3 – 2i, 3 + 2i
B. 2, 2
C. 0
D. -1, -1
E. 1, -2

2007-10-15 05:56:36 · 2 answers · asked by new mommy 1

I know that [0,5] is a closed interval and (0,5) is an open interval that excludes 0 and 5.
Do [0,infinity) and (0,infinity] make any difference?

2007-10-15 05:49:09 · 3 answers · asked by cidyah 7

A. solving for the slope.
B. taking the log.
C. estimating the solutions.
D. dividing by the denominator.
E. completing the square.

2007-10-15 05:40:53 · 4 answers · asked by Anonymous

solve

2007-10-15 05:34:30 · 8 answers · asked by Kevin G 1

A triangular park ABC has sides 120cm,80cm and 50cm.A gardener Dania has to put a fence all around it and also plant grass inside.How much area does she need to plant?Find the cost of fencing it with barbed wire at rate of RS 20 per metre leaving a space 3m wide for a gate on one side.




I can find the area but how do i find the cost?

2007-10-15 05:31:08 · 3 answers · asked by Anonymous

In rectangle ABCD, AC = 20, BC = 12, DC = 3x – y. and AD = 2x + y. Solve for x and y. Show all work to receive credit.

2007-10-15 05:30:51 · 2 answers · asked by Anonymous

2007-10-15 05:11:16 · 2 answers · asked by LisaE 1

Suppose that you invested $16,000 in a high-risk growth fund that after 2 years was worth $25,000. Your broker used the following equation to find the average annual rate of return, (r)

16,000(1 + r)2 = 25,000
What is the annual rate of return?

I don't understand the equation.

2007-10-15 05:08:38 · 5 answers · asked by dale h 2

An isosceles right triangle has an area 200cm^2.What is the length of its hypotenuse?

2007-10-15 05:06:41 · 5 answers · asked by Anonymous

The Lenny Archivist, always keeping an eye open for new job opportunities, decided to pay a visit to the Brightvale Institute of Technology, Engineering, Mathematics and Economics. Unfortunately, he showed up unannounced, and without an appointment, so the dean didn't have time to meet with him.

"Let me see if I have any free time," the dean said as he looked through the calendar. "But first, let me give you a little puzzle."

Then he wrote the following numbers on a piece of paper:

03 - 04 - 11 - 04 - 02 - 06 - 10 - 08

"Now, this code forms a word that would be part of your new job responsibilities. I don't think I could hire you unless you could solve it."

sighhh so lost =/

2007-10-15 05:06:40 · 1 answers · asked by Anonymous

Approximate the sum of the series correct to four decimal places.
((-1)^n)/((3^n)*n!)

2007-10-15 05:05:25 · 2 answers · asked by sugardaddy8815 1

no three points are collinear (imagine them lying on the perimeter of a circle. Use mathematical induction.

2007-10-15 05:03:34 · 1 answers · asked by Not Quite Agnostic 2

2007-10-15 04:54:02 · 3 answers · asked by Raymond D 1

Differentiate ln(tanx)

?_?

2007-10-15 04:45:43 · 5 answers · asked by Anonymous

How about -x^2+ 9? May you please explain why and inform me of any postulate etc?

2007-10-15 04:27:57 · 4 answers · asked by GLAYS S 2

Find the quotient using long division:

a^3+4a^2+7a+6 / a+2?

Thanks!

2007-10-15 04:18:54 · 5 answers · asked by John 1

Jose wants to put a fence around his rectangular garden. His garden measures 33 feet by 39 feet. The garden has a path around it that is 3 feet wide. How much fencing material does Jose need to enclose the garden and path?


I really need the answer to this, and it has to be the right one too! Thanks :)

2007-10-15 04:16:19 · 11 answers · asked by Anonymous

hi
i am quite stuck.
how do i give my answer in the form z = x + iy
when i know the modulus |z| = 5
and the argument = pi/8

2007-10-15 03:55:22 · 5 answers · asked by fpa06mr 5

2007-10-15 03:50:30 · 5 answers · asked by Onika D 1

2007-10-15 03:34:47 · 2 answers · asked by rcd 1

This is a tricky shape, help me find the area!!

http://i2.photobucket.com/albums/y48/xxkrystinaxx9/4-1.gif

2007-10-15 03:31:55 · 2 answers · asked by Marcela M 1

6x^2y-2xy-60y this one has bugging me for two days, help!

2007-10-15 03:22:51 · 6 answers · asked by Cat C 1