# Forums / Miscellaneous Discussions / Math Tricks/Problems

Math Tricks/Problems | ||||
---|---|---|---|---|

21:59:10 Oct 5th 07 - Mr. Sigheart:I was feeling a bit bored so I decided to make this. Every few days or
as long as it takes you to answer the question I'll post another Math
trick/problem. I'd like it if you posted how you got to the answer so I
know you didn't ask someone else or go on the internet. If it's not answered in 4 days then I'll post how you do it. | ||||

22:42:33 Oct 5th 07 - Mr. Dreadii:r^2=2phi*r^2 | ||||

22:50:27 Oct 5th 07 - Mr. Soccermage:wrong | ||||

23:10:40 Oct 5th 07 - Mr. Asystole:Ok here's my reasoning. The square inside the circle will touch at the corners (diagonals). This means the length of the hypotenuse (triange inside the square) will be 1, if we say the circle has radius of 1. This means the sides of the square are sqrt(2) in length, by pythagorean formula (1^2 + 1^2 = sqrt(2)^2....). Area of square is 2 square units, length by width. sqrt(2)^2 = 2 Area of circle is pi r ^2, or just pi (as r = 1). 3.14...etc Area of circle occupied = 2/3.14 = 63.7% | ||||

23:22:22 Oct 5th 07 - Mr. Soccermage:right. | ||||

23:25:22 Oct 5th 07 - Mr. Seloc:next please. | ||||

23:28:56 Oct 5th 07 - Mr. Seloc:While we wait, Prove that any odd number squared is odd. | ||||

00:00:55 Oct 6th 07 - Mr. Acelnorst:
My math teacher told me when I was 12. therefore it must be. | ||||

00:20:40 Oct 6th 07 - Mr. Sigheart:Good job Asystole, also while I'm at it Dreadii don't be to down
that you got that one wrong most people in my class did that
immediatly. | ||||

00:28:21 Oct 6th 07 - Mr. Asystole:[(x-y)*x]*(-y) don't think this is right but guessing anyhow | ||||

00:37:07 Oct 6th 07 - Mr. Asystole:Any odd number can be represented by 2N+1, where N is an integer (2N+1)^2 = 4N^2+2N+1 = 4(N^2) + 2N + 1 = X + Y + 1, where X and Y are even (any even times an integer is even) = Z + 1, where Z is even (any even plus an even is even) Z + 1 is therefore odd, as any odd plus an even is odd. | ||||

00:45:32 Oct 6th 07 - Mr. Sigheart:Asystole is right. | ||||

00:47:35 Oct 6th 07 - Mr. Gilth:(x-y)x*(-y) | ||||

01:23:13 Oct 6th 07 - Mr. Soccermage:(x-y)^2 does not equal x^2 - y^2 | ||||

01:26:24 Oct 6th 07 - Mr. Soccermage:(x-y)^2 does not equal x^2 - y^2 | ||||

01:58:06 Oct 6th 07 - Duke Tiber Septim IV:I bet you can't solve my math problem! 2+2=? Oh yeah...you all are stumped... | ||||

02:11:37 Oct 6th 07 - Mr. Sigheart:Tiber it's 4. | ||||

03:15:00 Oct 6th 07 - Mr. Asystole:(2137*2136)/(2137triangle2136) = [(2137*2136-2137^2)] / [2137/2136-2137] = [-2137] / [-2135.9995...] = 1.00047...? | ||||

04:31:46 Oct 6th 07 - Mr. Sigheart:No. But not a bad go, you messed up at a couple points. | ||||

05:19:58 Oct 6th 07 - Mr. Asystole:Unless you're not using typical precedence I don't see it. brackets, exponent, divide/multiply, then add/subtract. Answer would be 1 if a tri b was a/(b-a) | ||||

06:22:04 Oct 6th 07 - Duke Tiber Septim IV:I HAVE ANOTHER! S+P+A+M=? | ||||

06:54:04 Oct 6th 07 - Mr. Dakarius:Septim | ||||

11:56:15 Oct 6th 07 - Mr. Asystole:S+P+A+M= | ||||

13:04:50 Oct 6th 07 - Mr. Dreadii:S+P+A+M= infinit S+P+A+M= Duke Tiber Septim IV | ||||

17:57:07 Oct 6th 07 - Mr. Atreides:Is the answer 1? | ||||

21:17:07 Oct 6th 07 - Mr. Alexander The Great:what do spam mean , i heard it's meat , but what is it's meaning ?? | ||||

00:33:48 Oct 7th 07 - Lord Yerean:uhhhh | ||||

02:58:17 Oct 7th 07 - Mr. Sigheart:I'm horribly embarresed but Atreides and Asystole are both right and I
was wrong. I've been checking and rechecking to make sure this next
problem is right. Andy had an average of 87 on 4 test. What does he have to get on | ||||

03:16:28 Oct 7th 07 - Mr. Dakarius:-_- not worth answering. | ||||

03:17:29 Oct 7th 07 - Mr. Asystole:I'll leave the easier ones, someone solve it :) | ||||

04:25:20 Oct 7th 07 - Mr. Sigheart:Expect my next few to be easier as I make sure my harder ones are correct. | ||||

06:15:58 Oct 7th 07 - Duke Tiber Septim IV:Einstein was wrong! E=MC Hammer O_o | ||||

09:32:24 Oct 7th 07 - Mr. Seloc:E=MC squared never agrue with Einstein! So when this never problem coming? | ||||

16:15:36 Oct 7th 07 - Mr. Sigheart:
Andy had an average of 87 on 4 test. What does he have to get on | ||||

19:04:42 Oct 7th 07 - Mr. Seloc:*sighs* | ||||

19:16:25 Oct 7th 07 - Mr. Spankylicious:102 | ||||

19:18:22 Oct 7th 07 - Mr. Sigheart:Correct A father in his will left all his money to his children in the following manner:
When this was done each child had the same amount. How many children were there? | ||||

19:28:21 Oct 7th 07 - Mr. Spankylicious:9 children which get $9000 each. | ||||

19:56:03 Oct 7th 07 - Mr. Sigheart:I would have liked an explanation for the problem but your right. | ||||

20:20:07 Oct 7th 07 - Mr. Kimms:Unfortunately, it's Sunday, and i don't do math on Sundays! | ||||

20:42:41 Oct 7th 07 - Mr. Spankylicious:"I would have liked an explanation for the problem but your right." | ||||

21:15:45 Oct 7th 07 - Mr. Atreides:Cool thread! Unfortunately, as I look through these problems, I get the feeling my HS level math abilities are going to prove insufficient for all but the easiest of these problems =( | ||||

21:18:10 Oct 7th 07 - Mr. Spankylicious:EDIT: I meant y/x not x/y. | ||||

22:25:25 Oct 7th 07 - Mr. Atreides:I got the children one....it was amongst "the easiest of these problems." | ||||

00:05:31 Oct 8th 07 - Mr. Sigheart:I just got into 9th grade is my defence and I got the last one. | ||||

00:14:41 Oct 8th 07 - Mr. Spankylicious:Sequence? I'm not sure I get what you mean... | ||||

17:51:29 Oct 8th 07 - Mr. Sigheart:Okay they're are a bunch of numbers that this equation could equal. 18,
47, and 7 are part of these numbers. I'd like for you to name the 5 and
6 ones. | ||||

20:12:57 Oct 8th 07 - Mr. Spankylicious:Those are 123 and 322. | ||||

20:23:17 Oct 8th 07 - Mr. Sigheart:Okay how about this one. | ||||

21:22:10 Oct 8th 07 - Lord Yerean:umm errr ... | ||||

[Top] Pages: 1 2 3 4 5 (next) |

My bookmarksOld forum design