Bafflers?

bobbym · 2012-05-18 10:15:25

Hi gAr;

gAr · 2012-05-18 17:21:07

Hi bobbym,

bobbym · 2012-05-18 20:35:19

Hi gAr;

gAr · 2012-05-18 22:50:01

Hi,

bobbym · 2012-05-19 00:05:05

Hi gAr;

bobbym · 2012-05-19 01:36:01

Find the equation of the line that intersects x^2 - 4x - 6 at two points A and B, has a slope of 5 and the distance between A and B is exactly 10.

gAr · 2012-05-20 02:03:45

Hi bobbym,

The composition of g.f's is something that I didn't know.
Woo hoo, that's amazing!
What other problems can it solve?

bobbym · 2012-05-20 02:18:27

Hi gAr;

Anytime something depends on how many of the other. Basically it is for this type of problem. I do not remember whether Conroy does one but I know that Tucker showed me how. This is the standard book problem.

I have 2 die. I throw one and then throw the other as many times as the number that comes up on the first die.What are the probabilities for each possible sum?

So we use the composition of functions to do this:

gAr · 2012-05-20 02:35:21

Hi,

Okay, thanks for the problem, and the nice solution.

Find the equation of the line that intersects x^2 - 4x - 6 at two points A and B, has a slope of 5 and the distance between A and B is exactly 10.

bobbym · 2012-05-20 02:59:30

Hi gAr;

gAr · 2012-05-20 03:02:09

Thanks!
I'll take a break, see you later...

bobbym · 2012-05-20 03:05:25

Okay, thanks for coming in and working on the problems.

anonimnystefy · 2012-05-20 03:26:24

Hi bobbym

bobbym · 2012-05-20 05:42:34

Hi;

anonimnystefy · 2012-05-20 06:04:44

And what is the correct one.

bobbym · 2012-05-20 06:06:45

Hmmmm. I feel a rant coming on...

anonimnystefy · 2012-05-20 06:25:45

bobbym · 2012-05-20 06:35:03

anonimnystefy · 2012-05-20 06:39:12

Last edited by anonimnystefy (2012-05-20 06:44:48)

bobbym · 2012-05-20 06:57:13

anonimnystefy wrote:

What is the point of simplifying?
Also,you are really starting to get on my nerves a little (not really,but I am lacking the right expression).When I simplify you say don't.When I don't you say simplify.I can't keep up with you.

I am not trying to get on your nerves. These threads demand a little bit more accuracy. We get that accuracy by correcting each other. I realize that is hard to do without offending someone. But I hope you will understand that someone who corrects you is at that moment your best friend, if he is right of course.

Would you leave an answer as 2 / 4 or 32 / 64 or 50 / 100? For one thing you might confuse the person who is marking your paper. 2630 / 104 does not immediately look like 1315 / 52.

I never say in an answer not to simplify except in some rare cases. We can talk about them if you like. Sometimes when working on a problem it is advantageous to not simplify until the end. Those cases are rare.

anonimnystefy · 2012-05-20 07:22:51

Hi bobbym

I am not trying to offend you.I noted that I was lacking the right expression.

Well,I usually cancel,but a person marking my paper should be an expert on the subject capable on recognizing different forms of an answer.

Let's discuss it,but in another thread,so to not bury your problem.

bobbym · 2012-05-20 08:31:58

I am not offended. You should not be trying to keep up with me. Never compete with an old man. There are two possibilities:

1)You beat him but you get no credit because everyone thinks you just beat a has been, a spent force long past his prime.

2) He uses his tremendous experience to beat you and you look doubly ridiculous having just lost to Grandpa.

anonimnystefy · 2012-05-20 08:52:14

Who is trying to keep up with you?

bobbym · 2012-05-20 08:53:03

That is what you said in your quote.

anonimnystefy · 2012-05-20 09:09:07

Oh,that! That was not the same meaning you used.

Math Is Fun Forum

#501 2012-05-18 10:15:25

Re: Bafflers?

#502 2012-05-18 17:21:07

Re: Bafflers?

#503 2012-05-18 20:35:19

Re: Bafflers?

#504 2012-05-18 22:50:01

Re: Bafflers?

#505 2012-05-19 00:05:05

Re: Bafflers?

#506 2012-05-19 01:36:01

Re: Bafflers?

#507 2012-05-20 02:03:45

Re: Bafflers?

#508 2012-05-20 02:18:27

Re: Bafflers?

#509 2012-05-20 02:35:21

Re: Bafflers?

#510 2012-05-20 02:59:30

Re: Bafflers?

#511 2012-05-20 03:02:09

Re: Bafflers?

#512 2012-05-20 03:05:25

Re: Bafflers?

#513 2012-05-20 03:26:24

Re: Bafflers?

#514 2012-05-20 05:42:34

Re: Bafflers?

#515 2012-05-20 06:04:44

Re: Bafflers?

#516 2012-05-20 06:06:45

Re: Bafflers?

#517 2012-05-20 06:25:45

Re: Bafflers?

#518 2012-05-20 06:35:03

Re: Bafflers?

#519 2012-05-20 06:39:12

Re: Bafflers?

#520 2012-05-20 06:57:13

Re: Bafflers?

#521 2012-05-20 07:22:51

Re: Bafflers?

#522 2012-05-20 08:31:58

Re: Bafflers?

#523 2012-05-20 08:52:14

Re: Bafflers?

#524 2012-05-20 08:53:03

Re: Bafflers?

#525 2012-05-20 09:09:07

Re: Bafflers?

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