carl0s Posted June 1, 2009 Share Posted June 1, 2009 16yr olds who are just now taking their GCSE exams are supposed to know this aren't they? Or are they? "What's the square root of 64?" "Carl we don't even get taught square roots at school" We're all fucked. Link to comment Share on other sites More sharing options...
Lbm Posted June 1, 2009 Share Posted June 1, 2009 Did you ever get the answer? Link to comment Share on other sites More sharing options...
Ian R Posted June 1, 2009 Share Posted June 1, 2009 I would have thought it still would be important. Just as pythagarus theory and trig etc etc. Not that I have used them much since I left school though Link to comment Share on other sites More sharing options...
Homer Posted June 1, 2009 Share Posted June 1, 2009 They definetly teach that at GCSE level mathematics, even long before GCSE level, usually in primary school. This kid is either a bit thick or didn't pay attention in math class! Link to comment Share on other sites More sharing options...
Branners Posted June 1, 2009 Share Posted June 1, 2009 The average student probably knows that. The funny thing about averages, there have to be just as many thick people below the average as there are smart arses above it to make it an average. So remember when your partner tells you that you were just average in bed, there are plenty more people she found worse than you. Link to comment Share on other sites More sharing options...
Havard Posted June 1, 2009 Share Posted June 1, 2009 Did you ever get the answer? 8 probably..... Link to comment Share on other sites More sharing options...
juanchan Posted June 1, 2009 Share Posted June 1, 2009 8 probably..... Or maybe -8 Link to comment Share on other sites More sharing options...
Havard Posted June 1, 2009 Share Posted June 1, 2009 Or maybe -8 That's just cold.... Link to comment Share on other sites More sharing options...
juanchan Posted June 1, 2009 Share Posted June 1, 2009 That's just cold.... A part of me (the school kid who doesn't know what square roots are part ) wants to draw similes with maternal sleeping areas, but that would be harsh Link to comment Share on other sites More sharing options...
RiceRocket Posted June 1, 2009 Share Posted June 1, 2009 Actually what is the point of a Square Root function? How is it used in a particular application? Link to comment Share on other sites More sharing options...
jamesmark Posted June 1, 2009 Share Posted June 1, 2009 Actually what is the point of a Square Root function? How is it used in a particular application? The whole point of the 'square root' function is for this thread. Whoever thought it up ............. Mr Square Root or someone like that obviously had this thread in mind. Link to comment Share on other sites More sharing options...
Scott Posted June 1, 2009 Share Posted June 1, 2009 Actually what is the point of a Square Root function? How is it used in a particular application? seriously? Link to comment Share on other sites More sharing options...
RiceRocket Posted June 1, 2009 Share Posted June 1, 2009 seriously? I know how it works and can calculate the answer for any simple number (1-1000). Give an example for it necessity, is it required in genetics, send a rocket into space, predict the weather, what??? Link to comment Share on other sites More sharing options...
Scott Posted June 1, 2009 Share Posted June 1, 2009 Its used in design, construction, engineering etc etc. I use it on an almost daily basis. A simple use is to find out the length of a side of a right angled triangle. a(squared)=b(squared)+c(squared) where a is the longest side. Link to comment Share on other sites More sharing options...
merckx Posted June 1, 2009 Share Posted June 1, 2009 Actually what is the point of a Square Root function? How is it used in a particular application? I'll give you an example which is so so simple. A search team looking for a crashed plane were allocated a search area of 100 square miles. If the area was in the shape of a square box then the length of each side would be equal to the square root of 100 = 10 miles. Link to comment Share on other sites More sharing options...
Fitz Posted June 1, 2009 Share Posted June 1, 2009 It's all trigonometry, square root function was to find which number could be multiplied by itself to give another number, and the same but working backwards. So, yeah. You could use it for measurements etc. Link to comment Share on other sites More sharing options...
RedM Posted June 1, 2009 Share Posted June 1, 2009 definetly That is definitely one of my pet peeves. Link to comment Share on other sites More sharing options...
RiceRocket Posted June 1, 2009 Share Posted June 1, 2009 Its used in design, construction, engineering etc etc. I use it on an almost daily basis. Just couldn't recall ever seeing it in use apart from calculators and on maths theory boards. I'll give you an example which is so so simple. A search team looking for a crashed plane were allocated a search area of 100 square miles. If the area was in the shape of a square box then the length of each side would be equal to the square root of 100 = 10 miles. Link to comment Share on other sites More sharing options...
juanchan Posted June 1, 2009 Share Posted June 1, 2009 Actually what is the point of a Square Root function? How is it used in a particular application? seriously? I know how it works and can calculate the answer for any simple number (1-1000). Give an example for it necessity, is it required in genetics, send a rocket into space, predict the weather, what??? Its used in design, construction, engineering etc etc. I use it on an almost daily basis. A simple use is to find out the length of a side of a right angled triangle. a(squared)=b(squared)+c(squared) where a is the longest side. Just couldn't recall ever seeing it in use apart from calculators and on maths theory boards. I'm actually shocked to see that conversation. Similar to the kid in the OP, I thinks! Link to comment Share on other sites More sharing options...
Carl_S Posted June 1, 2009 Share Posted June 1, 2009 I'm pretty sure I'm one of those guys that is below average in bed. I fear the day that I will ever be told that though. Link to comment Share on other sites More sharing options...
DamanC Posted June 1, 2009 Share Posted June 1, 2009 I'm pretty sure I'm one of those guys that is below average in bed. I fear the day that I will ever be told that though. You are below average in bed Link to comment Share on other sites More sharing options...
jamesmark Posted June 1, 2009 Share Posted June 1, 2009 I think you will need to sleep with Ruby Wax to be told that (as in she is a loudmouth like Simon Cowell). Link to comment Share on other sites More sharing options...
Marmoot Posted June 2, 2009 Share Posted June 2, 2009 Actually what is the point of a Square Root function? How is it used in a particular application? Say if Supra's displacement is 3000 with 6cyls, then each cylinder is roughly 500 cubic centimetres. If you're designing a stroker kit with 10cm stroke, then your piston area would 500/10 = 50sq.cm. With pi*r*r = 50sq.cm, the radius of your piston would be the square root of 50/pi. If you don't have square root function, the next logical step would be to make your piston rectangular the size of 50x1 cm to get it to 50 sq.cm, but 50cm per piston would make the engine too long since it would make the 2JZ a 3m engine. Link to comment Share on other sites More sharing options...
carl0s Posted June 2, 2009 Author Share Posted June 2, 2009 The average student probably knows that. The funny thing about averages, there have to be just as many thick people below the average as there are smart arses above it to make it an average. So remember when your partner tells you that you were just average in bed, there are plenty more people she found worse than you. Phew. That's comforting to know ;-) I'm not too surprised that she didn't know the answer, I was just bugged by the "they don't teach us that at school". It's all I ever hear! I asked her the question because I was busy with something and said "Dunno" when she asked what a dual carriageway was, and she said "You're a driver, how can you not know what a dual carriageway is?", so I said "What's the square root of 64.." and said "You're a GCSE student and you don't know the square root of 64.." Link to comment Share on other sites More sharing options...
Carl_S Posted June 2, 2009 Share Posted June 2, 2009 Yeah, sorry about that night Daman, trust me I'm not always like that. Link to comment Share on other sites More sharing options...
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