Solve the system of linear equations. If the system has infinitely many solutions, describe the solution with an ordered triple in terms of variable z.5x + 2y + z =-112x - 3y - z=177x - y=12
A. no solution
B. (-2, 0, -1)
C. (1, -5, 0)
D. (0, -6, 1)
Answer: A
Mathematics
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Find the opposite of the polynomial.16a2 - 4
A. -16a2 - 8 B. -16a2 + 4 C. 16a2 - 4 D. 16a2 + 8
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Factor by grouping.6z2 + 5z - 6
A. (6z - 2)(z + 3) B. (3z - 2)(2z + 3) C. (3z + 2)(2z - 3) D. Prime
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Prove:
Mathematics
Solve the absolute value inequality. Other than ?, use interval notation to express the solution set and graph the solution set on a number line.|x + 1| > 0
A. (-1, ?)
B. (-?, -1) ? (-1, ?)
C. (-1, 1)
D. ?
Mathematics