Answer:
8.7°
Step-by-step explanation:
The above problem can be represented by a right angled triangle with height of 7 m, hypotenuse = AB.
The base of the triangle is gotten by finding the diagonal of the road. That is using Pythagoras theorem:
base² = 43² + 15²
base² = 2074
base = 45.54 m
Using trigonometric function to find angle A:
tan(A) = base / height
tan(A) = 45.54 / 7
tan(A) = 6.506
A = tan⁻¹ (6.506)
A = 81.3°
Angle of depression = 90° - A = 90 - 81.3
Angle of depression = = 8.7°
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Answer:
The answer to that is B. 129°
Answer: 0.8L
Step-by-step explanation:
Nolan drinks 2L of water everyday.
If he has drank 0.6 (6/10) of his goal during lunch,
(6/10) * 2L = 1.2 L
He has drank 1.2L of water now and he has
2L - 1.2L = 0.8L left to drink.
The coefficient will be 5.