Write the system of equations associated with the augmented matrix.
A. x = 8
y = 6
z = 0
B. x = 0
y = 0
z = -6
C. x = -1
y = 1
z = 7
D. x = 1
y = -1
z = -7
Answer: D
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Find the product of the two binomials.(x + 9y)(x - 3y)
A. x2 + 3xy - 27y2 B. x + 6xy - 27y C. x2 + 6xy - 27y2 D. x2 + 6xy + 6y2
Graph the system of linear inequalities. Tell whether the graph is bounded or unbounded, and label the corner points.
A. bounded; corner points (0, 0), (0, 3), (3, 0)
B. bounded; corner points (3, 0), (0, 3), (6, 0)
C. unbounded; corner points (0, 3), (6, 0)
D. unbounded; corner points (0, 3), (3, 0)
Use Cramer's rule to determine if the system is inconsistent system or contains dependent equations.
A. system is inconsistent B. system contains dependent equations
Factor completely. If the polynomial is prime, then state this as your answer.-20x3 + 18x2 - 4x
A. -2x(2x - 1)(5x - 2) B. -2(2x2 - 1)(5x - 2) C. x(-4x + 2)(5x - 2) D. x(2x - 1)(-10x + 4)