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?

$9.41

step-by-step explanation:

she will sew have sewn five dresses   and be 1/3 done with the sixth one in an hour.

step-by-step explanation:

3/4 of an hour=45 mins

lucy makes 1 dress per 11.25 minutes

45 mins+11.25 mins=56.25 mins

60 mins- 56.25 mins=3.75 mins

3.75 mins is 1/3 of of 11.25 mins

therefore she the other 1/3 would be part of the hour and she will have sewn 5 dresses and begun the sixth.

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