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myrzilka [38]
2 years ago
15

Round to the nearest hundredth (please help picture inculded) ​

Mathematics
1 answer:
Yuri [45]2 years ago
5 0

Answer:

AB ≈ 6.53

Step-by-step explanation:

using the cosine ratio in the right triangle

cos40° = \frac{adjacent}{hypotenuse} = \frac{AC}{AB} = \frac{5}{AB} ( multiply both sides by AB )

AB × cos40° = 5 ( divide both sides by cos40° )

AB = \frac{5}{cos40} ≈ 6.53 ( to the nearest hundredth )

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