Find the requested value.
{6x + 6 if x ? 04 - 3x if 0 < x < 3x if x ? 3
A. 30
B. 3
C. 4
D. -8
Answer: C
Mathematics
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A. Yes B. No
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Use the distributive property to write the expression without parentheses. Then simplify, if necessary.3(x + 9y + 3)
A. 3x - 27y - 9 B. 3x + 27y + 3 C. 3x + 27y + 9 D. 3x + 9y + 3
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Determine if the vector u is in the column space of matrix A and whether it is in the null space of A.u = 
, A = 
A. Not in Col A, not in Nul A B. In Col A, not in Nul A C. Not in Col A, in Nul A D. In Col A and in Nul A
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Use the addition property of inequality to solve the inequality and graph the solution set on a number line.x + 6 ? -1
A. (-?, -7]
B. (-?, -7)
C. [-7, ?)
D. (-?, 5)
Mathematics