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16357

Re: New file uploaded to mathforfun

The files a a kind of speed test: How many files can one person add before the moderator de-lists them?
bogaduck
Mar 24
#16357
 
16356

Re: New file uploaded to mathforfun

What do these file have to do with math?
richlinda6751
Mar 21
#16356
 
16339

Pi Day

Welcome to 3 - 14 - 15; Pi Day
bogaduck
Mar 14
#16339
 
16338

Re: Help

That wasn't wind. The shockwave blast is so loud that it blasts out windows. btw nukes exploding can be heard all over the world as a loud ear flutter "thump".
bqllpd
Feb 11
#16338
 
16337

Re: Help

are you sure that the shockwave actually travels at the speed of sound? It seemed that the sound of the blast arrived at the same time as the wind, judging by
christopher arthur
Feb 11
#16337
 
16336

Help

This is not mobile friendly at all. I calculated that the explosion that happened in Ukraine on Monday was about 15 miles away from the time of the flash to
bqllpd
Feb 11
#16336
 
16334

Re: Christmas cake question

Correction - should be: r^2 = 3/4 + u^2
video_ranger
Jan 11
#16334
 
16333

Re: Christmas cake question

Peter, yes if the sides of the triangle (adjacent to the 60 degree angle) are 1 and w, the third side (distance between the ends of the compass legs) by the
video_ranger
Jan 11
#16333
 
16332

Re: Christmas cake question

My musings would support Mark's idea. One possible influence is whether the side of the triangle that "wears down" does so (wears) according to the length of
bogaduck
Jan 11
#16332
 
16331

Re: Christmas cake question

I'm pretty sure the answer to the question is that the curve lies entirely inside the circle. The radius of the circle is: R = 1/2 + sqrt(3)/4 and the center
video_ranger
Jan 10
#16331
 
16330

Re: Christmas cake question

I could be wrong but this is my interpretation of the question: Imagine a compass whose two arms are both 1 unit in length and the angle between them 60
video_ranger
Jan 9
#16330
 
16329

Re: Christmas cake question

you lost me with whatever to be "worn away" means for part of a triangle.
christopher arthur
Jan 8
#16329
 
16327

Re: Can x be solved for using this equation?

0 = mx((ax)/(mn)+(b+(b^2-4ac)^(1/2))/(2mn))(nx+n(b-(b^2-4ac)^(1/2))/(2a))+d = ax^3 + bx^2 + cx + d So it's a general cubic equation. There's a standard method
video_ranger
Dec 18, 2014
#16327
 
16326

Re: Can x be solved for using this equation?

... From: bqllpd To: mathforfun@yahoogroups.com Sent: Sunday, December 14, 2014 6:48 AM Subject: [MATH for FUN] Can x be solved for using this equation? The
aleksisto
Dec 15, 2014
#16326
 
16325

Can x be solved for using this equation?

The equation is mx((ax)/(mn)+(b+(b^2-4ac)^(1/2))/(2mn))(nx+n(b-(b^2-4ac)^(1/2))/(2a))+d=0 Can this be solved for x? It has three solutions (I think). Multiply
bqllpd
Dec 13, 2014
#16325
 
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