Mathematics (Science & Mathematics) - 14 December 2007

Newton's method does not converge quadratically for the following problem. Accelerate the convergence using the Aitken's (triangle in square) method.
Iterate until |q[n]-q[n-1]|<10^(-4);
for (x)^2 - 2*x*(e)^(-x) + e^(-2x)= 0, [0, 1]

Thank you for any provided info regarding this problem!!!

2007-12-14 13:26:46 · 2 answers · asked by Astalav 1

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what is the derivative of x^y = 4?

2007-12-14 13:23:08 · 3 answers · asked by Anonymous

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Algebra 2 - Logirithims- What did I do wrong - Easy Best ANSWER?

How do you solve- what is the answer to:

log2(x) + log2(x + 2) = 3

I did this:

log2(x) + log2(x + 2) = 3
log2((x)(x+2)) = 3
log2(x^2 +2x) = 3
2^3 = x^2 +2x
8 = x^2 +2x
0 = x^2+2x - 8
o = (x+4)(x-2)
x = 4, -2

and I am wrong - please Help!!! Ist correct answer gets best answer

2007-12-14 13:20:58 · 3 answers · asked by Jaz 'ma' Taz 2

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Can the same equation be classified as a circle and an ellipse?

I don't know whether the following equation as a circle, a parabola, an ellipse, or a hyperbola.

3x² + 3y² – 3x – 6y – 7 = 0

2007-12-14 13:17:13 · 6 answers · asked by scrappydoo1017 1

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arccsc (.6 radians)?

how do you find arccsc of .6radians? (3/5.. i know this conversion is first step)

2007-12-14 12:53:34 · 3 answers · asked by baller4lyfe 1

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MATH HELp!!!!!!!!!!?

1 + 1 = ?

2007-12-14 12:51:08 · 9 answers · asked by Anonymous

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Find the median?

Find the median of the following set of numbers.
47, 25, 58, 28, 67, 66
a) 51 1/2
b) 58
c) 47
d) 52 1/2

2007-12-14 12:48:50 · 5 answers · asked by Sis F 6

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Find the mean?

Find the mean of the following set of numbers.
13, 15, 18, 18, 18, 19, 22, 26, 28, 33
a) 21 b) 20.6 c) 20 d) 20.3

Thank you all.

2007-12-14 12:40:37 · 5 answers · asked by Sis F 6

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what is the domain and range of f(x)= ln(x) + ln(1-x)?

2007-12-14 12:24:37 · 3 answers · asked by Anonymous

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Convert 6,320 yards into miles?

2007-12-14 12:14:29 · 6 answers · asked by thirdpickle3 1

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Geometry help!!?

does anyone understand proofs?
and could help me.
or have a way of explaining it that doesnt come from a 30 yr-old that maybe i could understand
anyone please!!!
thanks you =/

2007-12-14 12:07:25 · 7 answers · asked by Nikki 1

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Solve using the quadratic formula: (2x+1) (x-3)= -7?

what is the answer

2007-12-14 12:04:36 · 9 answers · asked by Denise C 1

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i need help with these word problems?

A)
Richard has 22 coins with a total value of $4. If the coins are all quarters and dimes, how many of each type does he have?
B)
A coffee merchant has coffee beans that sell for $9 per pound and $12 per pound. The two types are to be mixed to create 100lb of mixing that will sell for $11.25 per pound. How much of each type of bean should be used in the mixture?
C)
In a town election, the winning canidate had 220 more votes than the loser. If 810 votes were cast in all, how many votes did each canidate recieve?
D)The length of a rectangle is 2 in. more than twice its width. If the perimeter of the rectangle is 34in., find the dimensions of the rectangle.

2007-12-14 11:56:38 · 7 answers · asked by jennifer p 1

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Is it always permissible to simplify an expression before taking the derivative of a function...?

or might the first derivative of that function be different? If the answer can be different, please cite an example.

2007-12-14 11:54:06 · 4 answers · asked by Anonymous

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Calculus Question?

Determine whether the following series converge or diverge. If they converge, find their sum if possible.

1/(2*3) - 3/(3*4) + 5/(4*5) - 7/(5*6) + ........................

2007-12-14 11:32:30 · 2 answers · asked by A4life2k4 1

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A vertical tower of height 60 m...?

A vertical tower of height 60 m is surmounted by a radio mast of height 25 m. Find the greatest angle that the mast subtends at a point in the horizontal plane through the foot of the tower.

2007-12-14 11:28:10 · 3 answers · asked by JDickens10 2

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