If a+b-c=3 what is the value of 4(a+b-3)-(a+b+3c)?
1 answer:
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Answer:
Last option 527.7 ft
Step-by-step explanation:
From the diagram attached we can see the angle of depression is 80.2 which is equal to ∠ACB (alternate angles)
Height of the deck AB = 520 ft. and we have to calculate the distance H between the tourist and her friend.
Sin ∠ACB =
Now we apply sin rule sin 80.2 =
So the tourist and her friend are 527.7 ft apart.
