Find the exact value of the expression. Do not use a calculator.cos (-3?) + sin 
A. -1
B. 0
C. -2
D. 2
Answer: C
Mathematics
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Factor by grouping.12x2 + 20xy - 9xy - 15y2
A. (4x - 3y)(3x + 5y) B. (4x - 3)(3x + 5) C. (12x - 3y)(x + 5y) D. (4x + 3y)(3x + 5y)
Mathematics
Solve the inequality.x2 - 3x + 2 > 0
A. (2, ?) B. (-?, 1) C. (-?, 1) or (2, ?) D. (1, 2)
Mathematics
Match the equation to the graph.(y - 1)2 = -6(x + 2)
A. 
B. 
C. 
D. 
Mathematics
Provide an appropriate response.A student was trying to solve the problem 
. The student knew that he should set 
but was confused about whether or not he should set 
, or 3 = 0 and 
. How would you advise this student?
What will be an ideal response?
Mathematics