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Please help! Urgent!

Please help! Urgent!-example-1

1 Answer

1 vote

Answer:

x = 10

Explanation:

using the cosine ratio in the right triangle and the exact value

cos60° =
(1)/(2) , then

cos60° =
(adjacent)/(hypotenuse) =
(5)/(x) =
(1)/(2) ( cross- multiply )

x = 5 × 2 = 10

User Liorko
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