Asurveyor measures the angle of elevation to a point on a mountain, that is 6 miles away, to be 15 degrees. the vertical change in the elevation from the point where the surveyor is standing to the point on the mountain is miles. (round your answer to the nearest hundredth of a mile)

In a survey of 1015 adults, a polling agency asked, "when you retire, do you think you will have enough money to live comfortably or not. of the 1015 surveyed, 534 stated that they were worried about having enough money to live comfortably in retirement. construct a 90% confidence interval for the proportion of adults who are worried about having enough money to live comfortably in retirement.