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Q: 2+2 ( Answered ,   13 Comments ) Question
 Subject: 2+2 Category: Science > Math Asked by: nediam1234-ga List Price: \$2.00 Posted: 15 Oct 2006 08:07 PDT Expires: 14 Nov 2006 07:07 PST Question ID: 773667
 `given the equation: 2+2 = x, what is x?` Subject: Re: 2+2 Answered By: omnivorous-ga on 15 Oct 2006 16:19 PDT Rated: ```Nediam1234 -- There are multiple answers: In base10 math it is 4. In base3, it is 11. In base4, it is 10. Please pick the one that you like. Best regards, Omnivorous-GA``` Clarification of Answer by omnivorous-ga on 16 Oct 2006 06:28 PDT ```Nediam -- There's no "2" in base 2 -- that's 10 in binary. Base2 (or binary) is used extensively in computing, as is hexadecimal (base16). The Babylonians used a number base of 60: http://en.wikipedia.org/wiki/Number_base But I don't know of any use of base3 or base4. You can stretch the answer to this question lots of ways. Even Pinkfreud is right: 2.4 would be rounded to 2, if one were using only one significant digit. So, 2 + 2 could equal five. On the other hand it could also equal 3, using that interpretation. Best regards, Omnivorous-GA```
 nediam1234-ga rated this answer: and gave an additional tip of: \$5.00 ```Thank you, I was (of course) looking for the base10 answers since I would have stated if I would have needed another base.. (tip: Since you where given the answers in many bases, I would not have skipped base2. (that is of course 100) . since thats actually used.. don't know where base3 and 4 are used in "real life"?!) Again, thank you fer letting me pay for this question. I just made \$20 from a bet... better share something with you ;) thanks thanks thanks :)``` Subject: Re: 2+2 From: srinand123-ga on 15 Oct 2006 09:10 PDT
 `it is 4 ...`
 Subject: Re: 2+2 From: steph53-ga on 15 Oct 2006 10:33 PDT
 ```Is this grade1 math?????? Steph53```
 Subject: Re: 2+2 From: galaxyinc-ga on 15 Oct 2006 12:20 PDT
 `This is 4`
 Subject: Re: 2+2 From: nediam1234-ga on 15 Oct 2006 12:33 PDT
 ```please answer the question in answers.. not comment.. I want to pay someone for the answer.. I will even tip! thanks```
 Subject: Re: 2+2 From: jaimejuan-ga on 15 Oct 2006 14:08 PDT
 ```Google doesn't admit new researchers so I can't answer but can comment: x is the right side of the equation. You could also say that x is the unknown. Is that enough or you want also the value of x?```
 Subject: Re: 2+2 From: omnivorous-ga on 15 Oct 2006 15:09 PDT
 ```In base10 math it is 4. In base3, it is 11. In base4, it is 10.```
 Subject: Re: 2+2 From: myoarin-ga on 15 Oct 2006 15:51 PDT
 ```Hey Nediam, There is a suspicion in the G-A community that persons who post this kind of question are just testing the validity of stolen credit cards. Of course (!) you're not, are you? Myoarin```
 Subject: Re: 2+2 From: nediam1234-ga on 15 Oct 2006 16:17 PDT
 ```Myoarin, Of course I'm not!! (then I would not need anyone to answer my question... since I'm charged \$0.5 just for posting the question.. which would be enough for validation of a credit card) I was not gonna say it here.. since it spoils my fun a bit... but...the reason... I want to be the guy how payed for knowing what 2+2 is... could be a word record or something!! :p But if nobody wants my money I can close this question.```
 Subject: Re: 2+2 From: myoarin-ga on 15 Oct 2006 17:02 PDT
 ```I believe you! Sorry, I should have checked for your other questions. Omnivorous-ga is the only commenter till now who is a G-A Researcher, who could post an official answer. He has also demonstrated greater depth in his approach. I keep thinking there must be a potential joke at the expense of the present US adminstration that could be based on your question. Cheers, Myoarin```
 Subject: Re: 2+2 From: markvmd-ga on 15 Oct 2006 17:21 PDT
 `Actually, x is the sum.`
 Subject: Re: 2+2 From: pinkfreud-ga on 15 Oct 2006 17:21 PDT
 ```I am reminded of an old, old joke. I first saw this scrawled as a graffito in the ladies' room of the math & science building of a university: 2 + 2 = 5 (for large enough values of 2)```
 Subject: Re: 2+2 From: harrysnet-ga on 16 Oct 2006 09:33 PDT
 ```I hate to disagree with the answer, but there is only *one* result, and that is 4 (or 4 if you want to be pedantic), since x = 4 = 11 = 10 = 4 for any n>=5 (where digit 4 is valid) That is, the *result* does not change only the *representation* of the result changes if you switch the number system. All representations though are equal, and all refer to the same number. Regarding usage of these bases apparently base-3 (called ternary) has some use in Islam, while base-4 (called quaternary) seems to have no practical use, although it has some interesing connections with binary (like octal and hexadecimal do, which motivates the use of these systems) For details check http://en.wikipedia.org/wiki/Ternary_numeral_system and http://en.wikipedia.org/wiki/Quaternary_numeral_system ... and all that coming out of the question of how much is 2+2!```
 Subject: Re: 2+2 From: mrpubnight-ga on 24 Oct 2006 08:23 PDT
 ```One could argue that 2 + 2 written as ((2^.5)^2) + ((2^.5)^2) <= 3.9999 etc using the rules of BEDMAS we first solve 2^.5 which is irrational. If we square this irrational number we will never get back to 2, in fact we will only get 1.9999 etc. Of course this is just a mathematical abstraction.``` 