Solve the equation by completing the square.x2 + 4x + 13 = 0
A. {-2 ± 
}
B. {-2 ± 3i}
C. {1, -5}
D. {2 ± 3i}
Answer: B
Mathematics
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Solve.The dome of a sports arena is the surface generated by revolving 
about the y-axis. Find the volume within the dome.
A. 57,000 m3 B. 61,000 m3 C. 54,000 m3 D. 50,000 m3
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Find zw or 
as specified. Leave your answer in polar form.z = 8
w = 3
Find 
.
A. 5
B. 5
C. 
D. 
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Solve the problem.The logistic growth model 
represents the population of a species introduced into a new territory after t years. When will the population be 50?
A. 1.53 years B. -1.39 years C. 10.66 years D. 13.58 years
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Perform the operation and reduce to lowest terms.
÷ 
A. 
B. 
C. 
D. 
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