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## #1 Help Me ! » three unknowns x y z how do I solve to make z closest to zero » 2008-01-07 07:44:29

jd
Replies: 5

I've got items to deliver and need to figure how to use the least number of stamps.

eg 34x +24y + z = 289

all of the unknowns have to integers.

thanks for any help

## #2 Re: Help Me ! » 2+2 = 3.99 recurring?? » 2006-07-20 17:10:23

I heard it on QI something about when you add 2 and 2 using log it turns out to be 3.99 recurring.

## #3 Help Me ! » 2+2 = 3.99 recurring?? » 2006-07-20 09:24:55

jd
Replies: 34

I heard somewhere this was true.

## #4 Re: Introductions » good day » 2005-10-27 01:11:53

Is that an impression of Steve Irwin?
oh. and I nearly forgot Paul Hogan.

## #5 Re: Introductions » good day » 2005-10-26 23:57:08

kangaroos I suppose.

## #6 Re: Introductions » maybe i can help u ! » 2005-10-26 22:51:01

oh I see. So all the t's don't count because they're suppose to be little anyway.

## #7 Re: Introductions » A lovely note » 2005-10-26 22:04:15

He hasn't died because I haven't seen episode 4, 5 and 6 so his death is only a speculative rumour.

You counted?

I said if...

yr5 super kids.

## #12 Re: Introductions » A lovely note » 2005-10-26 11:13:26

If Anakin stole back his children I bet if padmé could see it now another mother raising Leia and Luke she'd be furious.

## #13 Re: This is Cool » Really good at Mathematics? » 2005-10-26 10:33:11

MathsIsFun wrote:

Winner gets a free supply of binary digits for a year.

That almost sounds like a kind of chocolate.

## #14 Re: Help Me ! » Prove that 2n natural numbers is n(2n+1) » 2005-10-26 10:22:51

Thank you I get how to do it what I was confused about is "Prove that 2n natural numbers is n(2n+1)" I thought it meant prove 2+4+6+8+...+2n is n(2n+1).

## #15 Re: Introductions » maybe i can help u ! » 2005-10-26 02:50:59

The exact amount of T's hijacking are how many t's were posted.

## #16 Re: This is Cool » Really good at Mathematics? » 2005-10-26 02:27:10

I know you there isn't a nobel prize in mathematics but four years is a bit long it's like the world cup but it's only a one man team without brazil winning it four times.

## #17 Re: Introductions » maybe i can help u ! » 2005-10-26 02:00:16

MathsIsFun wrote:

I think Zach may have kindly edited out some waste of time or other.

ok that would make sense if it didn't make sense before but if it did make sense it wouldn't make sense.

## #18 Re: This is Cool » Really good at Mathematics? » 2005-10-25 12:39:59

Is it better than a nobel prize? Can I sell it?

## #19 Re: Introductions » maybe i can help u ! » 2005-10-25 12:21:44

nancy wrote:

Hey

Are you hesitating?

How step up the status of the game ?

Oh ! Please dont hesitate again!

[ No Real - Game rubbish here ]

I don't get it.

jd
Replies: 16

## #21 Re: Introductions » maths is so gr8 !!!! » 2005-10-25 12:17:35

wait let me refresh. Yep it would.

## #22 Re: Help Me ! » Prove that 2n natural numbers is n(2n+1) » 2005-10-22 23:35:40

I'm really confused what does

◊0=0
◊1=1

mean?

I only started a level is there a easier way? I think I saw "S=n/2[2a + (n-1)d]" when the teacher did it.
thanks, JD

## #23 Help Me ! » Prove that 2n natural numbers is n(2n+1) » 2005-10-22 09:52:52

jd
Replies: 8

Could someone help I'm not sure how to do this.

"Show that the sum of the first  2n natural numbers is n(2n+1)"
It's a question from the heinemann c1 book.

I would ask the teacher again but it's half term and I don't know his phone number.
good day