Robert went for a hot air balloon ride in a 20 ft tall balloon. His eye is 6 feet from the bottom of the basket. There was no wind on lift off and the balloon was able to ride vertically to a height of 2000 feet. From that point, Robert could see the landing spot. The angle of depression from his eye to the landing spot is 10. A) how far is the balloon at that moment from the landing spot?

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