Find an equation for the graph.
A. y = 4 cos (2x)
B. y = 4 cos 
C. y = -4 cos (2x)
D. y = 4 sin (2x)
Answer: A
Mathematics
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Provide an appropriate response.If 
converges, what can be said about 
, where k is an integer greater than 1?
A. The series always converges. B. The series may converge or diverge. C. The series always diverges.
Mathematics
Solve the equation.4d2 + 22d + 30 = 0
A. 
B. 
C. 
D. 
Mathematics
Graph the line.y = -4x - 6
A. 
B. 
C. 
D. 
Mathematics
Solve triangle ABC. If necessary, round the answer to the nearest tenth.a = 5.50, b = 9.2, C = 122.1°
A. No triangle exists. B. c = 15.9, A = 23°, B = 34.9° C. c = 18.8, A = 19°, B = 38.9° D. c = 13, A = 21°, B = 36.9°
Mathematics