Find the sum or difference. Write the answer in standard form, a + bi.[(5 + 8i) - (3 + 2i)] + (8 + 4i)
A. -6 + 2i
B. 10 + 10i
C. 10 + 14i
D. -6 + 10i
Answer: B
Mathematics
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Evaluate the root, if possible.- 
A. Not real B. -0.005 C. -0.05 D. 0.05
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Use the integral test to determine whether the series converges.
A. diverges B. converges
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Match the function with its graph.1) y = sin 
2) y = cos 
3) y = sin 
4) y = cos 
A)B)
width="200" /> C) D)
A. 1C, 2A, 3B, 4D
B. 1B, 2D, 3C, 4A
C. 1A, 2B, 3C, 4D
D. 1A, 2D, 3C, 4B
Mathematics
Solve the problem.An earthquake was recorded as 106.5 times more powerful than a reference level zero earthquake. What was the magnitude of this earthquake on the Richter scale? R = log
.
A. 3.5 B. 16.5 C. 6.5 D. 15
Mathematics