Pre-calculus application help.?

Chris

New member
I'm not sure how to solve these word problems. If you could please walk me through.
1. On September 25th, 2003, an earthquake that measured 8.3 on the Richter scale shook Hokkaido, Japan. How much energy (Joules) did the earthquake emit?

Here's the formula for earthquakes: 2/3Log(E/10^4.4)
 
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