Answer:
Approximately 3.6
Explanation:
The three main trigonometric ratios are: sine (o/a), cosine (a/h), or tangent (o/a) depending on the given. Then, there are your inverses. But for this problem, we are going to stick to one of the three. To help you remember them, you can use the saying SOH CAH TOA, which is sin = opposite/hypotenuse, cosine = adjacent/hypotenuse, and tangent = opposite/ajacent.
In this problem, we are going to use one that does not have a hypotenuse, since it was not given. So, that rules out sine and cosine, and leaves us with tangent, then we just need to set up the trigonometric ratio:
tan (50) = x/3
Then, you need to get x by itself, so you multiply 3 on each side, which leaves you with:
x = tan(50) * 3 = 3.6 (approximately)