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cwrw238Best ResponseYou've already chosen the best response.1
5. log2 64 = t 64 = 2^t 64 = 2^6 therefore t = 6 hours
 one year ago

cwrw238Best ResponseYou've already chosen the best response.1
the log of a given base of a number is the power to which the base is taken to give that number. in this case the base is 2 and 2^6 = 64 So log to base 2 of 64 = 6.
 one year ago

cwrw238Best ResponseYou've already chosen the best response.1
I cant do do number 4 as I dont know exactly how the magnitude of an earthquake is defined. If it were a simple proportional relationship the answer would be 6.7 / 5.1 but none of the options are close to that..
 one year ago

cwrw238Best ResponseYou've already chosen the best response.1
I suppose logs are involved as all these questions are about logs.
 one year ago

cwrw238Best ResponseYou've already chosen the best response.1
yep  they are logs to the base 10 by the look of it so we have: 10^6.7 / 10 ^ 5.1 = 10^(6.7  5.1) = 10^1.6
 one year ago

cwrw238Best ResponseYou've already chosen the best response.1
use your calculator to find 10^1.6
 one year ago
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