2 years ago

Find the value of x round to the nearest 10th

Mathematics

1 answer:

Solnce55 [7]2 years ago

7 0

Answer:

x ≈ 12.9

Step-by-step explanation:

In relation to the angle in this right triangle, the sides marked are the adjacent side and the hypotenuse. The relevant trig relation is ...

Cos = Adjacent/Hypotenuse

cos(72°) = 4/x

Multiplying by x/cos(72°), we have ...

x = 4/cos(72°)

x ≈ 12.9

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