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Elanso [62]
3 years ago
7

I need help with pre-cal, please!​

Mathematics
1 answer:
marshall27 [118]3 years ago
6 0

Answer:

b ≈ 4.2

Step-by-step explanation:

Using the tangent ratio in the right triangle, that is

tan50° = \frac{opposite}{adjacent} = \frac{BC}{AC} = \frac{5}{b} ( multiply both sides by b )

b × tan50° = 5 ( divide both sides by tan50° )

b = \frac{5}{tan50} ≈ 4.2 ( to the nearest tenth )

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