Illustrative exercise

Illustrative exercise

Identify Union B of set C and D, Intersection A of set C and D in two different ways. If the volume of a triangular prism is 756 m3, with a base width of 9 meters and base length of 14 meters, what is its height?
a6 a7
Two airplanes start toward each other at the same time from airports located 2450 kilo-meters apart. One plane flies at the average rate of 745 kilo-meters per hour. At what average rate must the second plane fly if they pass each other no more than 1 hours and 30 minutes later?
a8

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