Determine if the following is an identity or contradiction.2(x + 3) - 4 = 2x + 10
A. Contradiction
B. Identity
Answer: A
Mathematics
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Solve by completing the square to obtain exact solutions.x2 + 16x + 54 = 0
A. -8 ± 
B. 8 ± 3
,
C. 8 + 
D. -16 ± 3
Mathematics
Solve the problem.Determine whether the ordered triple (2, 9, -4) is a solution of the system of equations.2x - 5y - 9z = -5 x + y + z = 73x - y + 5z = 35
A. Yes B. No
Mathematics
Find the determinant of the given matrix.
A. -20 B. -116 C. 644 D. 20
Mathematics
Solve the absolute value equation.|6x - 11| = 0
A. 
B. 
C. 
D. ?
Mathematics