Solve the system of equations using matrices (row operations). If the system has no solution, say that it is inconsistent.
?
A. x = 1, y = 3, z = 0, w = -3; (1, 3, 0, -3)
B. x = -1, y = -3, z = 0, w = 3; (-1, -3, 0, 3)
C. x = 1, y = -3, z = 0, w = 3; (1, -3, 0, 3)
D. x = -1, y = 3, z = 0, w = -3; (-1, 3, 0, -3)
Answer: B
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A. (9, 4, 9) B. (6, -9, -4) C. (7, 7, 4) D. (6, 9, 4)
Evaluate the expression for the given values. Expression your answer as a fraction unless otherwise indicated.
x = 2, y = 3
A. 11 B. 14 C. 42 D. 10
Solve by completing the square.a2 - 10a + 9 = 0
A. a = ± 
B. a = 9, a = 1
C. a = -9, a = -1
D. a = 8, a = 1
Use a graphing utility to find the sum of the geometric sequence. Round answer to two decimal places, if necessary.8 - 24 + 72 - 216 + 648 - ... + 8 ? (-3)10
A. 354,303 B. 354,296 C. 354,290 D. 354,294