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Paul C
If inflation is a constant 2% and I was 150 pounds in 2000 and 165 in 2005, did I gain or lose weight?
Or better yet, can you tell me when those backward countries are going to join the developed world in using a sensible system of weights and measures so their children are not forced to waste their youth on memorising long lists of conversion factors?
Does literacy need to be addressed before numeracy can be fixed up? Should we petition our governments to spend some of our foreign aid in establishing literacy programs in these places? Maybe if it got up to 90%?
2 AnswersMathematics1 decade agoJourneys of an African swallow?
Well the Geographers weren't able to get this one so lets try the mathematicians.
A non-migratory African swallow flies from Botswana to Morocco to pick up a coconut. Gripping it by the husk it then flies 2240km North from Marrakesh. It then flies 2250km East dropping it's coconut in England along the way. It then flies 2240km South then 2250km West. Where is the swallow now?
If anyone's quick to get it, this is a modified question (in order to make it legit according to Yahoo Answers practices) and the sole response so far doesn't deserve the 10 points.
9 AnswersMathematics2 decades agoMathematician I reckon this ones for you (also if their are any complex analysis postdocs out there)?
Wondering the reason why this 1=-1 proof is not allowed I know basically it has something to do with multiplication working differently in the complex field but not the full guts as to why it's not allowed. Anyway it's:
1=1
sqrt(1)=sqrt(1)
sqrt(1)=sqrt(-1.-1.1)
sqrt(1)=i.i.sqrt(1)
1=i^2
1=-1
3 AnswersMathematics2 decades ago