Trigonometry--distance and area?


A.) find y if the distance between (2,y) and (7,8) is 16.
B.) find the area of a rectangle with vertices A(-3,0), B(-2,-1), C(1,2) and D(0,3).
C.) airplane A is located 3 miles west and 1 mile south of airport O. airplane B is locat...

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