An observer (o) is located 900 feet from the building (B). The observer notices a helicopter (H) flying at a 49 degree angle of elevation from his line of sight. How high is the helicopter flying over the building? You must show all work and calculations to receive full credit.

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step-by-step explanation:

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the furthest the dog can be is 508 meters away from the house, and the closest he can be is 492 meters away from the house.

6-3=3

3*3=9

9+12=21

21/3=7

7*8=56

56 is your answer

the first sequence is an arithmetic sequence.