Find the common ratio for the geometric sequence.3, 
, 
, 
, 
, ...
A. r = 2
B. r = 
C. r = 1
D. r = 3
Answer: B
Mathematics
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A. No B. Yes
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Without graphing the function, determine its amplitude or period as requested.y = -3 cos xFind the period.
A. 2?
B. 
C. 3
D. ?
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Which triangles, if any, are right triangles?
A. B B. A C. A and B D. neither triangle
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