Mathematics - 4 December 2007

2007-12-04 23:21:35 · 2 answers · asked by Answer Seeker 1

2007-12-04 23:19:40 · 6 answers · asked by Answer Seeker 1

Hey can anyone help me with these questions on my final exam review? It's the last thing we covered and we didn't have too much time to go over this stuff...

1.Find the interval of convergence for the series:
Summation(1 to infinity) of
(2^(k)) / ((2k)!) * x^(k)

2.Write the first five nonzero terms in a power series for
x / (2+3x^(3))
Find the interval of convergence. Use these five terms to estimate:
Integral from 0 to 0.1 (xdx) / (2+3x^(3))

Thanks y'all!!

2007-12-04 23:17:04 · 2 answers · asked by Anonymous

how do you solve this? substitution?

Integral of x / Sqrt( 2+3(x^2) )

2007-12-04 23:06:02 · 3 answers · asked by dposters 1

what is the million dollar word?

a=$1, b=$2 etc. each number gets multiplied together

eg. cat= 3 x 1 x 20 = 60

therefore the word cat equals $60... do you get it?

2007-12-04 23:01:38 · 5 answers · asked by Anonymous

I need the derivitive of this using the chain rule, but the answer has to be in terms of tangent, not secant, which is the derivitive of tan

2007-12-04 22:59:59 · 5 answers · asked by Kelly P 1

2007-12-04 22:10:43 · 11 answers · asked by Anonymous

can i ask we know dat 1km=1000m...
so how many meter in mm....

2007-12-04 22:07:03 · 6 answers · asked by zai_krijo 1

i need to work out percentages where the numbers are larger than the number that i want the percentage of. i.e. 113.7 as a percentage of 112.0. HELP!!!!

2007-12-04 22:06:08 · 6 answers · asked by mccullough83 1

Please help me... Please oh please oh please... I really need help... Thank you in advance and God bless!

2007-12-04 22:01:30 · 6 answers · asked by Anonymous

3 - square root {81}+(-2)^3

did I figure this right ?

3-{9} +{-2}^3
-6 + -8
=-14

2007-12-04 22:00:59 · 6 answers · asked by Maggie L 1

Uhm here's the problem: A train left the station at 9 am traveling at 50 mph. AT 11 pm, an airplane left the same place in the same direction at 175 mph. AT what time will the plane overtake the train? Can someone also tell me the steps? Thankshoo. :*

2007-12-04 21:26:20 · 7 answers · asked by Danie... ;) 1

I'm trying to learn math n I don't even have a teacher......

That is hard!

- 3(2x + 10) = 5(6x – 5) + 10

Distribute:

6x - 30 = 30x - 25 + 10

Ooh I see now put the x numbers on the left.

36x =

But what about the 30 on the left side....so confusing! I don't get it yet. Can u teach me pls.

2007-12-04 21:23:23 · 10 answers · asked by o0♥0o 1

2007-12-04 21:16:24 · 2 answers · asked by Chris W 1

Use differentials to estimate the amount of tin in a closed tin can with diameter 6 cm and height 12 cm if the tin is 0.012 cm thick.

Please show ALL work.
Correct answer is 3.39 cm^3.

I need to know how to ARRIVE at the answer.

2007-12-04 20:13:47 · 1 answers · asked by Anonymous

2007-12-04 19:53:05 · 7 answers · asked by Anonymous

2007-12-04 19:41:41 · 6 answers · asked by Jennifer L 1

Perform this operation

2007-12-04 19:02:21 · 3 answers · asked by monkeybrat12006 1

for (4+x^2)^(1/2) or sqrt(4+x^2)
write at least 6 terms...

2007-12-04 18:55:02 · 1 answers · asked by ryannnnn 1

2007-12-04 18:50:53 · 2 answers · asked by Anonymous

2007-12-04 18:50:26 · 2 answers · asked by Anonymous

I seem to be having huge difficulties with setting up a probability transition matrix for a Markov chain. I'm not sure where to start or what to do, especially if it's beyond basic.

For example, how would I construct a matrix for:
Suppose that if it has rained for the past 3 days, then it will rain today with probability 0.8; if it did not rain for the past 3 days then it will rain today with probability 0.2; and in anyother case the weather today will, with probability 0.6, be the same as the weather yesterday.

I just can't seem to wrap my head around how to do this...

2007-12-04 18:34:16 · 1 answers · asked by yogastar02 2

2x^+ 8x + 3 = O
This is how far I got: x^2 + 8x + 3/2 = 0
x^2 + 8x = -3/2
but not sure how to proceed from here. the book is really confusing.

2007-12-04 18:23:05 · 9 answers · asked by lcollis2002 1

2007-12-04 18:15:35 · 6 answers · asked by Savannah J 2

2007-12-04 17:59:52 · 5 answers · asked by Savannah J 2

find the length of a diagonal from a corner on the floor to the opposite corner on the ceiling

2007-12-04 17:56:11 · 5 answers · asked by Savannah J 2

How many pieces of square floor tile, 1 ft on each side, would you need to buy to tile a floor that is 11'6'' by 8'?

2007-12-04 17:54:56 · 2 answers · asked by Savannah J 2

how do i show without graphic?

2007-12-04 17:26:48 · 3 answers · asked by Anonymous

An investor has $59,000 to invest in three types of bonds. They are short term, intermediate term, and long term. How much should she invest in each type to satisfy the given conditions? Short term bonds pay 4% annually, intermediate term bonds pay 6%, and long term bonds pay 8%. The investor wishes to have a total annual return of $3,800 on her investment, with equal amounts invested in intermediate term and long term bonds.

2007-12-04 17:25:52 · 2 answers · asked by Rachel 1

a) write down the system in the matrix from AX=B
b) obtain the determinant and inverse of A
c) compute the matrices: A^2,A^3,(A^-1)^2,(A^-1)^3 and thier determinants.
d)solve the system

Please help.

2007-12-04 17:23:36 · 2 answers · asked by tony2007 2