The the magnitude of an earthquake r, can be measured by the equation r=log (a/t)+d, where a is the amplitude in micrometers, t, is 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.

The graph would model the correct amount on the Richter scale is as shown in the attached figure.

Step-by-step explanation:

Given the the equation to measure an earthquake R

R = log (A/T)+D

If an earthquake occurred for 4 seconds and D = 2

∴ R = log (A/4) + 2

To graph the function assume values for A and calculate the corresponding value of R, keep in mind that the the domain is all positive numbers only except zero

The attache figure represents the graph of R and the table used to graph it.

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step-by-step explanation:

nothjing

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