Determine the period of the given function.y = 3 cos x
A. ?
B. 3
C. 2?
D. 
Answer: C
Mathematics
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Simplify. Write final answer in radical form when necessary.
? 
A. 
B. 
C. 
D. 
Mathematics
Provide an appropriate response.How many real solutions are possible for a system of equations whose graphs are an ellipse and a hyperbola (both centered at the origin)?
A. 2 or 4 solutions B. 0, 1, 2, 3, or 4 solutions C. 0, 2, or 4 solutions D. 0, 1, 2, or 3 solutions
Mathematics
Find the y-intercept.f(x) = 14x2 + 11x + 16
A. 16
B. 
and 
C. none
D. -16
Mathematics
Find the perimeter. Use 3.14 for ?.
A. 157.32 yd B. 89.49 yd C. 59.66 yd D. 116.66 yd
Mathematics