Provide an appropriate response.A proper fraction has the form 
. What is the largest possible number that x can be?
A. 21
B. 20
C. 22
D. 10.5
Answer: B
Mathematics
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Sketch the graph represented by the equation.9x2 + 9(y2 + 1) = 225 + 18y + 9(6x - 9)
A. 
B. 
C. 
D. 
Mathematics
Replace the polar equation with an equivalent Cartesian equation.r cos ? = 7
A. 7y = 1 B. y = 7 C. x = 7 D. 7x = 1
Mathematics
Perform the indicated operation. Simplify the answer when possible.
? 
A. 
B. 5
C. 
D. 5
Mathematics
Provide the requested information about the circular function.What is the range of y = cos x?
A. [-1, 1] B. (-?, -1] ? [1, ?) C. (-?, ?) D. (-1, 1)
Mathematics