Without graphing the function, determine its amplitude or period as requested.y = -4 cos 
xFind the amplitude.
A. 4
B. 
C. 6?
D. 
Answer: A
Mathematics
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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 beats each other candidate in a head to head, pairwise comparison. Based on this information, we can say that voting method X violates the
A. monotonicity criterion. B. Condorcet criterion. C. majority criterion. D. independence of irrelevant alternatives criterion. E. none of these
Mathematics
Use the vertical line test to determine if the graphs are functions.
A. Yes B. No
Mathematics
Solve the equation by factoring.2x2 - 18 = 0
A. {10} B. {-9, 9} C. {-3, 3} D. {9}
Mathematics
Convert the angle in radians to degrees.
?
A. 1280?° B. 11° C. 640° D. 320°
Mathematics