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3 years ago

Solve for x and round to the nearest tenth

Mathematics

1 answer:

Mila [183]3 years ago

4 0

9514 1404 393

Answer:

88.9

Step-by-step explanation:

The relevant trig relation is ...

Cos = Adjacent/Hypotenuse

cos(77°) = 20/x

x = 20/cos(77°)

x ≈ 88.9

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