Evaluate the improper integral or state that it diverges.
A. -2
B. 0
C. 2
D. diverges
Answer: D
Mathematics
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Use the properties of opposites to complete the equation.-(-5) = _____
A. -5 B. 5 C. 0 D. None of the above
Mathematics
Solve the problem.The voltage E in an electrical circuit is given by E = 1.3 cos 100?t, where t is time measured in seconds. Find the period.
A. 50?
B. 
C. 
D. 50
Mathematics
Solve.3x2 + 4y2 = 83x2 + 3y2 = 9
A. (-2, -i), (2, i)
B. (-
, -i), (
, -i), (-2, i), (2, i)
C. (-2, -i), (-2, i), (2, -i), (2, i)
D. (-2, i), (2, i)
Mathematics
Convert the units using two or three unit fractions.7 hr = 
sec
A. 420 B. 25,200 C. 6300 D. 12,600
Mathematics