Solve the inequality and graph the solution on a number line.x2 + 12x + 35 ? 0
A.
B.
C.
D.
Answer: D
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Solve the problem.How many liters of a 70% alcohol solution must be mixed with 60 liters of a 90% solution to get a 80% solution?
A. 6 liters B. 120 liters C. 60 liters D. 12 liters
Simplify. Assume that no denominator is zero.x-9 ? x3 ? x-8
A.
B.
C. x20
D. x14
A delivery truck must deliver packages to five different store locations (A, B, C, D, and E). The trip must start and end at D. The graph below shows the distances (in miles) between locations. We want to minimize the total distance traveled.
The cheapest-link tour starting with vertex D is given by:
A. D, A, B, E, C, D. B. D, C, A, B, E, D. C. D, B, E, C, A, D. D. D, E, A, B, C, D. E. none of these
Solve the problem.The result of applying 12 consecutive 90° clockwise rotations with the same center is
A. a 90° clockwise rotation. B. a 90° counterclockwise rotation. C. a reflection. D. the identity motion. E. none of these