Solve the Problem. -The Richter Scale Measures the Magnitude M of an Earthquake

Multiple Choice

Solve the problem.
-The Richter Scale measures the magnitude M of an earthquake. An earthquake whose seismographic reading measures x millimeters 100 kilometers from the epicenter has magnitude M given by Give
The magnitude of an earthquake that resulted in a seismographic reading of 90,019 millimeters 100 kilometers
From its epicenter. Round to the nearest tenth.

A) 8.0
B) 7.0
C) 2.0
D) 9.0