Solve the inequality.x2 - 8x ? 0
A. [-8, 0]
B. (-?, 0] or [8, ?)
C. [0, 8]
D. (-?, -8] or [0, ?)
Answer: B
Mathematics
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Evaluate the expression.[[8]]
A. 9 B. -8 C. 7 D. 8
Mathematics
Sketch the graph of the quadratic function. Give the vertex and axis of symmetry.y + 9 = (x + 3)2
A. vertex: (3, 9)
axis of symmetry: x = 3
B. vertex: (- 3, - 9)
axis of symmetry: x = - 3
C. vertex: (- 3, 9)
axis of symmetry: x = - 3
D. vertex: (3, - 9)
axis of symmetry: x = 3
Mathematics
Determine graphically the solution set for the system of inequalities and indicate whether the solution set is bounded or unbounded.
Mathematics
Solve the system by the substitution method or the addition method.
A. (4, -5) B. (12, -6) C. (5, 4) D. (12, 3)
Mathematics