Perform the indicated operations. Be sure to simplify your answer.
+ 
+ 
A. 
B. 2
C. 3
D. 
Answer: C
Mathematics
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Solve the rational equation. If there is no solution, state this as your answer.
= 
A. {-9, 9} B. no solution C. {-9} D. {9}
Mathematics
Factor completely. If prime, so indicate.-75x3 - 80x2 - 20x
A. -5(3x2 + 2)(5x + 2) B. x(3x + 2)(-25x - 10) C. x(-15x - 10)(5x + 2) D. -5x(3x + 2)(5x + 2)
Mathematics
Determine the values of the parameter s for which the system has a unique solution, and describe the solution.sx1 - 5sx2 = 32x1 - 10sx2 = 5
A. s ? ± 1; x1 = 
and x2 = 
B. s ? 0, 1; x1 = 
and x2 = 
C. s ? 1; x1 = 
and x2 = 
D. s ? 1; x1 = 
and x2 = 
Mathematics
Match the graph to one of the polar equations. 
A. r = 3 + sin ? B. r = 3 + cos ? C. r = 6 sin ? D. r = 6 cos ?
Mathematics