For the given polar equation, write an equivalent rectangular equation.r = cos ?
A. (x + y)2 = y
B. x2 + y2 = y
C. (x + y)2 = x
D. x2 + y2 = x
Answer: D
Mathematics
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A. 2 B. 1 C. ?, for all x D. 0
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Find the limit, if it exists.
A. 1 B. 2 C. 4 D. Does not exist
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Make a preference table for the given voting situation.Eight voters are asked to rank 3 brands of automobiles: A, B, and C. The eight voters turn in the following ballots showing their preferences in order: 
Make a preference table for these ballots.
A. 
B. 
C. 
D. 
Mathematics
Multiply. 
A. 428,500 B. 418,500 C. 417,500 D. 419,500
Mathematics