2 years ago

Find the length of JM

Mathematics

2 answers:

rosijanka [135]2 years ago

5 0

Answer:

Step-by-step explanation:

Vera_Pavlovna [14]2 years ago

3 0

Answer:24

Step-by-step explanation:

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2 years ago

A life guard in a tower 20 ft above sea level spots a struggling surfer at an angle of depression of 15 . How far is the surfer

GalinKa [24]

Answer: $19.31\ ft$

Step-by-step explanation:

Given

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$\therefore \text{From the figure, we can write}\\\\\Rightarrow \cos 15^{\circ}=\dfrac{x}{h}\\\\\Rightarrow x=h\cos 15^{\circ}\\\Rightarrow x=20\cos 15^{\circ}\\\Rightarrow x=19.31\ ft$

Therefore, the surfer is at a distance of 19.31 ft from the base of the tower.

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