3 years ago

Help meh plz!!!!! will give brainlest if correct

Mathematics

1 answer:

docker41 [41]3 years ago

8 0

8.-6,-2
9.-1/2
10.10
11.two
12.none

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Step-by-step explanation:

Given

The tower is at a height of $h=20\ ft$

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Suppose the surfer is x ft away from the base of the tower

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

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

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