Multiply.(7 + 3i)(8 + 6i)
A. 38 - 66i
B. 18i2 + 66i + 56
C. 74 - 18i
D. 38 + 66i
Answer: D
Mathematics
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Solve the problem.The roof of a building is in the shape of the hyperbola 
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a = b = 4 m
A. 4.6 m B. 21 m C. 11.1 m D. 123 m
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Graph the polar equation.r = 2 - 3 sin 2?
A. 
B. 
C. 
D. 
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Solve the exponential equation. 100(1.05)x = 150(1.08)6x
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