Mount Royal is at the center of Montreal, Canada. No building is in Montreal can be taller than this mountain to ensure that the view from the top of the mountain is not obstructed. Suppose you are standing at the peak of Mount Royal, looking at the horizon. The angle of depression is a = 0.5°. How far are you from the horizon?

The radius of Earth r is 3963.2 miles. Give your final answer in miles, rounded to the nearest tenth.

Ur environment is very sensitive to the amount of ozone in the upper atmosphere. the level of ozone normally found is 4.04.0 parts/million (ppm). a researcher believes that the current ozone level is not at a normal level. the mean of 2525 samples is 4.44.4 ppm with a standard deviation of 0.80.8. assume the population is normally distributed. a level of significance of 0.020.02 will be used. make the decision to reject or fail to reject the null hypothesis. answer tables