Question

Find the value of y. Round your answer to the nearest tenth.

Answer 1

`\huge \boxed { \sf Answer}`

`\cos(21°) = (9)/(y) \\ = > 0.9336 = (9)/(y) \\ = > (y)/(9) = 0.9 336\\ = > y = 9 * 0.9336 \\ = > y = 8.4024 \\ = > y = 8.4`

Hope you could understand.

If you have any query, feel free to ask.