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The seismic activity density of a region is the ratio of the number of earthquakes during a given time span to the land area affected. A state had 424 earthquakes over a given time span and a land area of 71,300 square miles. What is the seismic activity density for this state? Round to the nearest ten thousandth, if necessary.

0.0046

0.0056

168.1604

179.0049

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Answers (2)
  1. 21 May, 12:47
    0
    It is given that seismic activity d ensity of a region is the ratio of the number of earthquakes during a given time span to the land area affected. so if the there 424 earthquakes and the land area is 71,300 sq miles.

    seismic activity density = 424 / 71,300

    seismic activity density = 0.0059

    the closest answer in the choices is 0.0056
  2. 21 May, 12:49
    0
    actually the answer is 0.0059

    0.0056 is not one of the choices. have a good day
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