Solve the problem.Use the formula R = log
, where the magnitude of an earthquake on the Richter scale is based on I, the measurement of a seismic wave, and I0, the measurement of a seismic wave of a level zero earthquake with the same epicenter. 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? (Round to the nearest tenth.)
A. 6.4
B. 5.4
C. 14.7
D. 0.6
Answer: A
Mathematics
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Graph the integrand and use areas to evaluate the integral.
A. 
B. 
C. 65
D. 11
Mathematics
Find the first five terms of the infinite sequence whose nth term is given.an = (-1)n - 1 (
)
A. - 2, 1, 
, - 
, 
B. 2, 1, 
, 
, 
C. 2, - 1, 
, - 
, 
D. - 2, 1, - 
, 
, - 
Mathematics
Classify the system as either consistent or inconsistent.
A. Inconsistent B. Consistent
Mathematics
Use ordinary division of polynomials to find the quotient and remainder when the first polynomial is divided by the second.2x3 - 3x2 - 5x + 4, x - 2
A. 2x2 + x + 3; 10 B. 2x2 + x - 3; -2 C. 2x2 - 7x + 11; 18 D. 2x2 + 7x + 9; 22
Mathematics