Solve the problem.An earthquake was recorded which was 2,511,886 times more powerful than a reference level zero earthquake. What is the magnitude of this earthquake on the Richter scale? Intensity on the Richter scale is log
.
A. 6.4
B. 0.64
C. 14.7
D. 5.4
Answer: A
Mathematics
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Graph the integrand and use geometry to evaluate the integral.
A. 36? B. 6? C. 18? D. 36
Mathematics
Use this graph to answer the question. 
What were the total sales for the first 6 months of 2007?
A. $366,000 B. $302,000 C. $64,000 D. $286,000
Mathematics
Translate to an equation and solve. When necessary, round to the nearest hundredth.What is 8.6% of 36?
A. 3.1 B. 31 C. 310 D. 0.31
Mathematics
Simplify the expression. Express the answer so that all exponents are positive. Whenever an exponent is 0 or negative, we assume that the base is not 0.
-3
A. 
B. 
C. 
D. 
Mathematics