The graph of a trigonometric function of the form y = A sin (Bx) or y = A cos (Bx) for B > 0 is given. Determine the equation of the function represented by the graph.
A. y = 3 sin 
x
B. y = 3 sin 2x
C. y = 2 sin 
x
D. y = 2 sin 3x
Answer: B
Mathematics
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A. t = 30 ? ln P
B. t = ln (30 P)
C. t = 3 ? ln 
D. t = 3 ? ln 
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Solve the problem.Find the missing length in the following right triangle. If necessary, round to the nearest tenth. 
A. 12 cm B. 14.5 cm C. 72.5 cm D. 145 cm
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Indicate whether the statement is true always, sometimes, or never.The product of a pair of complex conjugates (with b ? 0) is the difference of the squares of the real and imaginary parts.
A. Always B. Sometimes C. Never
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Write the equation in standard form of the line satisfying the given conditions.Through (4, 5); m = - 
A. 5x + 8y = 60 B. 5x - 8y = 60 C. 8x + 5y = -60 D. 5x + 8y = -60
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