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Mathematics, 05.10.2019 10:30 bellad05

The magnitude of an earthquake, r, can be measured by the equation r=log +d where a is the amplitude in
micrometers, tis measured in seconds, and d accounts for the weakening of the earthquake due to the distance from the
epicenter
if an earthquake occurred for 4 seconds and d = 2, which graph would model the correct amount on the richter scale?

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