The answer is 13.2 m. Because we are only given the hypotenuse, adjacent, and theta measurements. the opposite side is always opposite theta. In this case, theta is 39 degrees. The hypotenuse is always the slant of the triangle, so it is 17 m. And adjacent is obviously the only one left, in this case, it is x.
You have to use sin, cos, or tan for this problem. You would use cos because cos = adjacent /hypotenuse (x/17)
so you would do cos(39) times 17 x = cos(39) * 17 x = .777 * 17 x = 13.21
And it says round to the nearest tenth, so it is 13.2 m. Hope this helps.
In repeated sampling,the true proportion of country residents in favor of offering incentives to high-tech industries to build plants in the country will fall in the interval (0.49,0.59)