Solve the equation by factoring.20x2 + 49x + 25 = -5
A. x = - 
or x = - 
B. x = - 
or x = - 
C. x = 
or x = 
D. x = 
or x = 
Answer: B
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Use the shell method to find the volume of the solid generated by revolving the shaded region about the indicated line.About the line y = 3x = y + 6
A. 
?
B. 
?
C. 
?
D. 99?
Solve the problem.A twin-engined aircraft can fly 768 miles from city A to city B in 3 hours with the wind and make the return trip in 8 hours against the wind. What is the speed of the wind?
A. 112 mph B. 80 mph C. 96 mph D. 64 mph
Use the product rule to simplify the expression. Assume that the variables can be any real number.
A. 4
B. 4
C. 20
D. 4
Solve the problem.An election is held among four candidates (A, B, C, and D). Using a voting method we will call X, the winner of the election is candidate A. However, candidate D has more than 50% of the possible votes. Based on this information, we can say that voting method X violates the
A. majority criterion. B. independence of irrelevant alternatives criterion. C. Condorcet criterion. D. monotonicity criterion. E. none of these