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27-02-2019
Mathematics

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Find the value of x, rounded to the nearest tenth.
A.) 12.9
B.) 8.5
C.) 8.1
D.) 12.4

Find the value of x rounded to the nearest tenth A 129 B 85 C 81 D 124 class=

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MrGumby MrGumby

27-02-2019

Answer:

The correct answer is C) 8.1

Step-by-step explanation:

In order to solve the equation for x, we can use trigonometric functions. Since we are given the side adjacent to the angle and the hypotenuse, we'll use cos.

Cos(α) = ADJ/HYP

Cos(36) = x/10

10Cos(36) = x

8.1 = x

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