Solve.An earthquake was recorded with an intensity which was 
times more powerful than a reference level earthquake, or 
What is the magnitude of this earthquake on the Richter scale (rounded to the nearest tenth)? The magnitude of an earthquake of intensity I is defined as 
, where Io is a minimum level for comparison.
A. 3.9
B. 4.9
C. 0.5
D. 11.3
Answer: B
Mathematics
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A. (4, ?)
B. [4, ?)
C. (-?, 4]
D. (-?, 4)
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Sketch the graph of the rational function.f(x) = 
A. 
B. 
C. 
D. 
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Sketch a graph to represent the situation described.Janice jogged twice around a circular race track, which took her 4 minutes, then jogged to the center of the track and rested for 4 minutes before walking home slowly at a constant rate, which took her 12 minutes. Sketch a graph of her distance from the center of the race track as a function of time. Assume that the route she takes home is a straight line from the center of the race track.
A. 
B. 
C. 
D. 
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Solve the equation.ln 
= 4
A. {e8 - 3}
B. {e4 - 3}
C. {e8 + 3}
D. 
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