Solve the quadratic inequality by sketching the graph of the corresponding quadratic function.x2 - 9x + 8 < 0
A. Solution: [1, 8]
B. Solution: (1, 8)
C. Solution: (-?, 1) ? (8, ?)
D. Solution: ?
Answer: B
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Use graphical methods to solve the linear programming problem.2x + 6y ? 304x + 2y ? 20x ? 0y ? 0Minimize P = 0.18x + 0.12y
A. Minimum of 1.08 when x = 4 and y = 3 B. Minimum of 1.2 when x = 4 and y = 4 C. Minimum of 1.86 when x = 9 and y = 2 D. Minimum of 1.02 when x = 3 and y = 4
Solve the problem.You have 156 feet of fencing to enclose a rectangular region. Find the dimensions of the rectangle that maximize the enclosed area.
A. 78 ft by 19.5 ft B. 39 ft by 39 ft C. 41 ft by 37 ft D. 78 ft by 78 ft
Subtract. Write the answer in lowest terms as a mixed number.
A. 6
B. 7
C. 7
D. 8
Factor the trinomial.8y2 + 18y + 9
A. (4y - 3)(2y - 3) B. (8y + 1)(y - 9) C. (8y + 3)(y + 3) D. (4y + 3)(2y + 3)