Find the value. Give an approximation to four decimal places.log(3.08 × 105)
A. -4.5114
B. 5.4886
C. 0.4886
D. 5.0000
Answer: B
Mathematics
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Solve the inequality and graph the solution.-21r + 9 ? -3(6r - 8)
A. r ? -5 
B. r < -5 
C. r > -5 
D. r ? -5 
Mathematics
Perform the indicated operation and simplify. Write the answer in the form a + bi.(8 - 2i)(2 + 3i)
A. 22 - 20i B. -6i2 + 20i + 16 C. 22 + 20i D. 10 - 28i
Mathematics
Solve the problem.An earthquake was recorded as 105.7 times more powerful than a reference level zero earthquake. What was the magnitude of this earthquake on the Richter scale? 
A. 4.3 B. 15.7 C. 5.7 D. 13.1
Mathematics
The graph of a logarithmic function is shown. Select the function which matches the graph.
A. y = -log4x B. y = 1 - log4x C. y = log4(-x) D. y = log4x
Mathematics