Write one or more inequalities that describe the set of points.The rectangular solid in the first octant bounded by the planes x = 6, x = 9, y = 6, y = 8,  and  (planes excluded)

A. 6 < x < 9; 6 < y < 8; 1 < z < 2
B. x < y < z
C. The given planes do not form a rectangular solid
D. x < 6, x > 9; y < 6, y > 8; z < 1, z > 2


Answer: A

Mathematics

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