Use the formula 
.
The San Francisco earthquake of 1906 measured 8.25 on the Richter scale, and the San Francisco earthquake of 1989 measured 7.1. How much more intense was the 1906 quake?
A) 0.3 times as severe.
B) 1.5 times as severe
C) 5.7 times as severe
D) 10.8 times as severe
E) 14.1 times as severe
Correct Answer:
Verified
Q37: Graph the function. Q38: Write the equation in exponential form. Q39: Solve for x by writing the equation Q40: Solve for x by writing the equation Q41: Use a change-of-base formula to rewrite the Q43: Use the properties of logarithms to write
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