Factor and, if possible, simplify the expression.
A. sin x - 1
B. sin x + 1
C. cos2x
D. sin x
Answer: A
Mathematics
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Evaluate the improper integral or state that it diverges.
A. 
B. 
C. 
D. diverges
Mathematics
Solve the problem.A formula for the focal length of a lens is f = 
. Calculate f (the focal length) for a = 14 cm and 
Round to the nearest tenth.
A. 6.7 cm B. 6.5 cm C. 7.3 cm D. 7.0 cm
Mathematics
Evaluate the formula for the values given.B = 
when V = 12 and h = 2
A. B = 24 B. B = 14 C. B = 6 D. B = 18
Mathematics
Write the solution set in interval notation.-5 < z < -1
A. {z| -1 < z < -5} B. {z|-5 > z > -1} C. {z|-5 < z < -1} D. {z|-5 < z > -1}
Mathematics