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01-03-2018
Mathematics

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Find the value of x. round to the nearest tenth

Find the value of x round to the nearest tenth class=

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Banabanana Banabanana

01-03-2018

The cosine of an acute angle in a right triangle is the ratio of the length of the adjacent side to the length of the hypotenuse.

cos(22°) = x/11 ⇒ x = 11×cos(22°)

x = 11×cos(22°) = 11×0.9272 ≈ 10.2 units

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