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Sidana [21]
2 years ago
15

Solve for x. Round to the nearest tenth. Help

Mathematics
2 answers:
LekaFEV [45]2 years ago
8 0

Answer:

26

Step-by-step explanation:

cosθ = adjacent / hypotenuse

cos(26) = 18 / x

x= 18 / cos(26)

x= 27.82418 ≈ 20 (to nearest tenth)

Mrac [35]2 years ago
3 0

Answer:

x ≈ 20

Step-by-step explanation:

Using the cosine ratio in the right triangle

cos26° = \frac{adjacent}{hypotenuse} = \frac{18}{x} ( multiply both sides by x )

x × cos26° = 18 ( divide both sides by cos26° )

x = \frac{18}{cos26} ≈ 20.0 ( to the nearest tenth )

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