Answer:
m∠ACB = 49.88°
Step-by-step explanation:
From the figure attached,
Measure of wire AC attached to the top 'C' of the building BC = 340 m
Horizontal distance between the base 'B' of the building and point A = 260 m
Angle of depression = ∠ACB
By applying sine rule in the given triangle,
sin(∠ACB) = ![\frac{\text{Opposite side}}{\text{Hypotenuse}}](https://tex.z-dn.net/?f=%5Cfrac%7B%5Ctext%7BOpposite%20side%7D%7D%7B%5Ctext%7BHypotenuse%7D%7D)
= ![\frac{AB}{BC}](https://tex.z-dn.net/?f=%5Cfrac%7BAB%7D%7BBC%7D)
= ![\frac{260}{340}](https://tex.z-dn.net/?f=%5Cfrac%7B260%7D%7B340%7D)
m∠ACB = ![\text{sin}^{-1}(764706)](https://tex.z-dn.net/?f=%5Ctext%7Bsin%7D%5E%7B-1%7D%28764706%29)
= 49.88°
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Answer:the 2nd one is 30000 divided by 2000 is 15
Step-by-step explanation: so 15 minutes til they crash the plane
Answer:
x = 17
Step-by-step explanation:
5x + 29 + 2x + 32 = 180 (linear pair means that these angles add up to 180 cos they are in a line)
7x = 119
x = 17