Factor by grouping.2x3 - 6x2 + 7x - 21
A. (x + 3)(2x2 + 7)
B. (x - 3)(2x2 - 7)
C. (x - 3)(2x + 7)
D. (x - 3)(2x2 + 7)
Answer: D
Mathematics
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A. a = 1
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C. a = 
D. a = 
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Solve using the elimination method. Use a graphing calculator to check your answer. x - 3y = 18 9x - 2y = 12
A. (0, -6) B. (6, 0) C. (1, -7) D. No solution
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Provide the requested response.Choose the correct viewing rectangle to match the settings: [ -2 , 10 , 2 ] by 
A. 
B. 
C. 
D. 
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Graph the function and y = sin x in the same rectangular system for 0 ? x ? 2?.y = 
sin x
A. 
B. 
C. 
D. 
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