Expand.(-3x2 - y)5
A. -243x10 - 405x8y + 270x6y2 - 90x4y3 + 15x2y4 - y5
B. -243x10 + 405x8y - 270x6y2 + 90x4y3 - 15x2y4 + y5
C. -243x10 - 405x8y - 270x6y2 - 90x4y3 - 15x2y4 - y5
D. 243x10 + 405x8y + 270x6y2 + 90x4y3 + 15x2y4 + y5
Answer: C
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Determine whether the lines through each pair of points are parallel, perpendicular, or neither.(-3, 4) and (-19, -2); (10, -10) and (7, -18)
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A. 
B. - 7
C. - 
D. 7