Johnny's town is having an old-fashioned circus under a large tent. in order to keep the tent from falling down, workers must tie a 70-foot rope from the top corner of the tent to a stake in the ground. if the angle of elevation from the stake in the ground to the top corner of the tent is 62°, approximately how tall is the circus tent?

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