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Mathematics 7 Online
OpenStudy (anonymous):

Help with Logarithms??? I will give medals!!

OpenStudy (anonymous):

The Richter magnitude M of an earthquake is related to the energy released in ergs E shown by the formula M = (2/3)log (E/1011.8). How many times as much energy was released by the 1811 New Madrid, Missouri earthquake than by the Fort Tejon, California earthquake?

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