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 on the Richter scale of an earthquake of intensity I is 
A. 5.8
B. 13.4
C. 4.8
D. 0.6
Answer: A
Mathematics
You might also like to view...
Rewrite the expression in terms of exponentials and simplify the results.10 cosh (ln x)
A. 5(ex+ e-x)
B. 0
C. 5x
D. 5
Mathematics
Solve by completing the square to obtain exact solutions.x2 + 8x - 9 = 0
A. 1, -9 B. -3i, 3i C. -1, 9 D. 0, -9
Mathematics
Determine whether the pair of lines is parallel, perpendicular, or neither. 3x - 6y = -1518x + 9y = -15
A. Parallel B. Perpendicular C. Neither
Mathematics
Solve the exponential equation. For irrational solutions, round to four decimal places.
x = 14
A. {-3.8074} B. {-0.2626} C. {-7.0000} D. {3.8074}
Mathematics