Annabelle is flying a kite at the beach. If her kite string is 15 feet long and her kite is flying at a 27 degree angle of elevation, how high is her kite?

An automated water dispenser fills packets with one liter of water on average, with a standard deviation of 5 milliliter. the manual says that after a year of operation the dispenser should be tested to see if it needs recalibration. a year later a number of filled packets are set aside and measured separately. it is found that the average packet now contains about 0.995 liters. does the dispenser need calibration? explain your answer.

What could explain what happened when the time was equal to 120 minutes

Precalculus question, image attached.