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Mathematics - 18 July 2006

[Selected]: All categories Science & Mathematics Mathematics

Does anyone know if there is an actual equation used to figure out a question like...

If a train leaves from New York traveling 65 miles an hour and a train from chicago leaves, going toward the other train at 72 miles an hour, where will they meet? Or how long or whatever?

I've heard this question a ton, and I was wondering if there wa sa certain equation that could figure it out.

2006-07-18 09:38:42 · 6 answers · asked by Gydar 2

In a normal distribution, find MU whe standard deviation is 6 and 3.75% of the area lies to the leaft of 85.

2006-07-18 09:30:13 · 4 answers · asked by pyxie_grl 2

I've looked through my book and also went in for help but this stuff isn't clicking with me. I already failed the class once, and would rather not do so again. I guess resorting to this shows that at least I care.

In advance, I'd like to thank anyone who takes the time to assist me. I appreciate it.

I'll use the letter v to symbolize a down arrow.

1) Use the properties of logarithms to rewrite this as a single logarithm.

4 logV10^x + 2 logV10^(x+3)

2) Solve for x

logV7^(x+3) - 2 = logV7^3

3) Solve for x

4^x-3 = 25

4) Approx to 2 decimal places

logV25^750

2006-07-18 09:29:47 · 4 answers · asked by metsfan6986 1

LET

2 2 2 2
{ x - x } ={ x - x } dont u agree?? thus:

x (x - x) = ( x - x) ( x +x) difference bet. 2 squares

x = x + x (after removing (x-x) frm both sides)
1 = 2!!

2006-07-18 09:25:54 · 14 answers · asked by yummy yummy 2

2006-07-18 09:07:32 · 10 answers · asked by Anonymous

2006-07-18 09:01:42 · 9 answers · asked by Anonymous

thanks!

2006-07-18 08:32:47 · 17 answers · asked by joey322 6

A-->B,B-->C,C-->D & D-->A. they all meet in the center. How far do they each walk? show you logic!!

2006-07-18 08:20:08 · 11 answers · asked by J S 1

This was explained to us in class, but I didn't quite understand how to do it and there is no tutor available for summer classes.

2006-07-18 08:18:42 · 5 answers · asked by daniellers007 1

In equation ; Pi x r^2 = a^2

2006-07-18 08:15:55 · 16 answers · asked by mustermark 1

What is the factored form of 2(x - 2)^2 - (x - 2) - 1 ?

2006-07-18 08:11:29 · 5 answers · asked by zoso_arivolk 1

2006-07-18 08:03:16 · 8 answers · asked by lucky 1

2006-07-18 07:16:49 · 7 answers · asked by Enrique P 1

At the dawn of the modern scientifc era (late 1500s) most of the leading thinkers considered the use of mathematics to be adding a "mystical" element to what thay desired to be purely objective methodology. Can this be explained?

Source: Hugh Kearney's book "Science and Change 1500 to 1700"

2006-07-18 07:13:18 · 2 answers · asked by neil s 7

2006-07-18 07:03:56 · 2 answers · asked by shyam 2

...at point (c, d), also on the curve, then the two tangent lines can never intersect.

2006-07-18 06:39:09 · 5 answers · asked by Olivia 4

2006-07-18 06:37:36 · 12 answers · asked by Mark T 2

Please help me I have exam on friday
1) Intregate e^x{(x^2+1)\(x+1)^2}
2) Intregate [{sin x - cos x}\{1 + sin x*cos x}]dx = 0

2006-07-18 06:22:29 · 6 answers · asked by Anonymous

Please explain why all triangles equal up to 180 degrees.

2006-07-18 06:15:23 · 14 answers · asked by YeonCouture 2

2006-07-18 05:54:37 · 6 answers · asked by Aman 1

A. x < -1/3
B. -5 < x < 2
C. -8/3 < x < 2
D. 0 < x
E. none of these

2006-07-18 05:42:13 · 4 answers · asked by Olivia 4

iota and iota squre,iota cube,omega ,omega squre,omega cube?

2006-07-18 05:40:38 · 6 answers · asked by Aman 1

Problem 1.

-4x+8y= 1
3x-6y= 1


Problem 2.

2x+5y= 15
-6x-15y= -45

2006-07-18 04:55:02 · 10 answers · asked by Brandon ツ 3

Problem 1.

x-3y=4
-2x+6y= 3


Problem 2.

5x-y= 3
-10x+2y= 2

2006-07-18 04:25:22 · 7 answers · asked by Brandon ツ 3

2006-07-18 04:24:49 · 10 answers · asked by Anonymous

2006-07-18 04:18:48 · 30 answers · asked by making_moves2005 1

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