Couple interesting maths problems Watch

dramaminedreams
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#1
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1) A rail track is 1 mile long (5280 feet). One day a joker lays a an extra 1 foot of track in the middle (don't ask how) and the track is now an arc of length 5281 feet. What is the maximum height from the ground to the track. *Calculator needed*

2) 3^x = 1000000
Find x
I'll give you a clue... don't use logs.
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MC REN
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(Original post by dramaminedreams)
2) 3^x = 1000000
Find x
I'll give you a clue... don't use logs.
lol why not? it is so easy to do with logs
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dramaminedreams
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(Original post by MC REN)
lol why not? it is so easy to do with logs
without a calculator??
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SimonM
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(Original post by MC REN)
lol why not? it is so easy to do with logs
Unless this is a silly question where they are working base 3 or something
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MC REN
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If you want, but I'll just leave my answer in logs then...
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MC REN
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(Original post by SimonM)
Unless this is a silly question where they are working base 3 or something
Oh right, suppose he probably does mean something like that (not that he said anything like that, and his hint could've been a bit more explicit...) otherwise it is ridiculous not to just take logs
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dramaminedreams
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Hmmm... I'm sorry I don't think that is exactly what question 2 is.
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Brook Taylor
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(Original post by dramaminedreams)
Hmmm... I'm sorry I don't think that is exactly what question 2 is.
*throws away trial+error calculations in disgust*
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Willis123
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(Original post by Brook Taylor)
*throws away trial+error calculations in disgust*
L
M
F
A
O
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Willis123
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1,000,000 = 10*10*10*10*10*10

10= 3^2.1

sooo 6 times 2.1 = 12.6 so isit 3^12.6 ?
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neomilan
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(Original post by Willis123)
1,000,000 = 10*10*10*10*10*10

10= 3^2.1

sooo 6 times 2.1 = 12.6 so isit 3^12.6 ?
you're beautifully close to the real answer of 12.574
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Willis123
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(Original post by neomilan)
you're beautifully close to the real answer of 12.574
this made me smile soo MUCH
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