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9966 [12]
3 years ago
15

Use the cosine ratio or the inverse cosine to solve for x. Round your answer to the nearest tenth.

Mathematics
1 answer:
maria [59]3 years ago
7 0

Answer:

x ≈ 12.6 m

Step-by-step explanation:

By using cosine ratio in the given right triangle RTS,

cos(S)° = \frac{\text{Adjacent side}}{\text{Hypotenuse}}

cos(33)° = \frac{\text{ST}}{\text{SR}}

cos(33)° = \frac{x}{15}

x = 15.cos(33)°

x = 12.58

x ≈ 12.6 m

Therefore, measure of side ST = 12.6 m is the answer.

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svetoff [14.1K]

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