Math Is Fun Forum

  Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

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#54 Re: Introductions » Hi!!!!!! » 2008-09-30 00:21:58

Sonic the hedgehog wrote:
JohnnyReinB wrote:

Hello guys, and welcome to the Forum!

Answer to Sonoc's question: To become a membe, you must have at least 50-60 posts, i think. The more posts you make, the higher your status becomes.

Real members, however, are different. You ask MathsIsFun to get that.

By the way you spelled Sonic wrong

Oops, sorry. Keyboard made a mistake:P

#55 Re: Maths Is Fun - Suggestions and Comments » Whats with LQ? » 2008-09-20 17:05:56

Here's one my classmate (the class clown) said:

Roses are red,
Violets are blue.
Spongebob is yellow
And so is Pooh.

#57 Re: Introductions » Hi!!!!!! » 2008-09-11 19:12:55

Hello guys, and welcome to the Forum!

Answer to SonIc's question: To become a member, you must have at least 50-60 posts, i think. The more posts you make, the higher your status becomes.

Real members, however, are different. You ask MathsIsFun to get that.

#58 Re: Coder's Corner » MNEMONICS. » 2008-08-30 22:25:19

PEMDAS, here, for order of operations.

I remember reading something after Pluto was reclassified. The mnemonic should now be:

My Very Eager Mother Just Served Us Nothing! <- the planets

Chris Plays Everything! <- the minor planets (so far)

#60 Re: Introductions » Hi all » 2008-08-21 22:15:41

Hey wasabi, welcome to the site!

#61 Re: Introductions » Hi, I'm back... OMG! » 2008-08-16 17:29:43

Hehe, we're all just using the same three words, plus Hey.

#62 Re: Dark Discussions at Cafe Infinity » Global Warming- It's Happening! » 2008-08-15 22:24:38

We watched that movie in Biology (and part of it in our 1st year orientation last year [again, my 1st year corresponds to western 7th grade])

I've read about it in wikipedia and they say that Al Gore was a bit over-estimating the figures.

#66 Re: Puzzles and Games » Jane’s quizzes » 2008-07-30 01:35:04

I think Jane didn't count your thermosphere, since you said it was the exosphere and ionosphere together.

#67 Re: Puzzles and Games » Jane’s quizzes » 2008-07-29 22:37:36

EdIt; never noticd the 2nd page, hehe. ngek.
EDIT2: The #14's fixed.

#68 Re: Introductions » introducing. » 2008-07-28 13:00:56

Welcome to the forums, Mamo!

#69 Re: Dark Discussions at Cafe Infinity » Batman The Dark Knight » 2008-07-28 12:57:05

Funny, I've thought of watching that movie. But if you guys think 13 year-olds can't grasp it, I'd better wait 3 years, then. hehe.

#70 Jokes » What Happens When Scientists Enter a Bar? » 2008-07-26 22:13:59

JohnnyReinB
Replies: 2

One evening Rene Descartes went to relax at a local tavern. The tender approached and said, "Ah, good evening Monsieur Descartes! Shall I serve you the usual drink?". Descartes replied, "I think not.", and promptly vanished.

...

Heisenburg was also sitting at the bar. After Descartes vanished in a puff of smoke, the bartender walked over to him and asked, "Did you see that?" To which Heisenburg replied, "I can't be certain."

...

The bartender then noticed Einstein was there. So he asked him if he could believe what had happened. Einstein replied, "It's all relative."

...

Then the bartender noticed that Carl Sagan was there. He walked over to him and asked, "Can you believe that all these famous people are here in THIS bar?" Sagan replied, "No. Why there must be BILLIONS and BILLIONS of bars out there."

#71 Re: Help Me ! » Some Questions way Over my Head.... » 2008-07-26 22:01:33

JaneFairfax wrote:

Well, for #1, rewrite the given equation as

and square both sides. (You can square the original equation directly but it turns out that rewriting as above and squaring will cause some terms to cancel and make life a bit easier.). You’ll need to square both sides one more time to get rid of another square-root. In the end, when you’ve simplified everything, you should get

The LHS is just

.

I’ve been trying to look for a less tedious method than squaring but can’t find any so far. There may well be some easier methods, but if you can’t find any, then just stick to old-fashioned squaring.

Thanks, Jane! I actually got up to that part , but I did not know how to simplify it.
Being 13 really does have its disadvantages, don't you think?

#72 Help Me ! » Some Questions way Over my Head.... » 2008-07-25 22:06:37

JohnnyReinB
Replies: 22

I just took a test a few hours ago, and most of it was too advance for me (in my friends' terms, NOSEBLEED!.)

Still, I'm curious.

Could you tell me the answers to these questions?

Given that


Prove that

Assuming that n is a natural number, prove that


cannot be simplified.

#74 Re: Introductions » what a great site! » 2008-07-08 23:19:50

Welcome to the site, Rob! Hope you find what you're looking for, with the help of the great members here (excluding me, that is. I'm only thirteen)

#75 Re: Help Me ! » Algebra :) » 2008-07-08 23:17:24

Technically, I'm in 8th grade too (though we call it 2nd year High School here).

Here in the Philippines, we're reviewing about solving linear equations in two variables, along with introduction to the Determinants and Cramer's Rule. Later, I think we'll be starting quadratic equations.

That's all I know for now.

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