Solve.An earthquake had an intensity 
times more powerful than a reference level earthquake, or 
What was the magnitude of this earthquake on the Richter scale? The magnitude on the Richter scale of an earthquake of intensity I is 
A. 14.5
B. 16.3
C. 6.3
D. 3.7
Answer: C
Mathematics
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Write the first four terms of {an}.an = 
A. 
, 
, 
, 
B. -1, 1, 
, 
C. 1, 
, 
, 
D. 0, 
, 
, 
Mathematics
Perform the indicated operation and write the answer in the form 
where a and b are real numbers.(3 + 4i) - (-6 + i)
A. -3 + 5i B. 9 + 3i C. -9 - 3i D. 9 - 3i
Mathematics
Solve and, when appropriate, round the answer to the nearest tenth.The time T in seconds for a pendulum of length L feet to make one swing is given by T = 2?
. How long is a pendulum (to nearest hundredth) if it makes one swing in 1.1 seconds? Use 3.14 for ?.
A. 6.2 ft B. 9.7 ft C. 1 ft D. 38.7 ft
Mathematics
Solve the problem.yn = - 
yn-1 + 6; y0 = 18(a) Generate y0, y1, y2, y3, y4.(b) Graph these first few terms.(c) Solve the difference equation. 
What will be an ideal response?
Mathematics