Find an equation for the graph.
A. y = -4 cos (2x)
B. y = 4 cos 
C. y = 4 cos (2x)
D. y = 4 sin (2x)
Answer: C
Mathematics
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B. 
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Evaluate the spherical coordinate integral.
A. 
?
B. 
?
C. 
?
D. 
?
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Find the exact value of the expression.tan 345°
A. 
B. 2 + 
C. -2 - 
D. 
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Approximate the square root. Round to the nearest tenth, if needed.
A. 4.6 B. 3.6 C. 3.5 D. 3.7
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