# Messages List

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

#16356Fetching Sponsored Content...

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
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

#16325Fetching Sponsored Content...

View First Topic
Go to
View Last Topic