A teacher is demonstrating energy transformation with a basketball. He drops the ball from a fixed height and challenges his students to predict the height that the ball will bounce. • Student A predicts that the ball will bounce to the exact height it was dropped. • Student B predicts that the ball will bounce at a height lower than the height it was dropped. What is a reasonable rationale for the predictions of student A and student B? Be sure to include an explanation of the energy transformation as well. What should student A do to provide further evidence if the result of the ball bounce does not support their prediction?.

1. a driveway has a 15° grade. if the driveway is 40 meters long, how much does the driveway rise? (nearest tenth of a meter) 2. a person located 4 miles from a rocket launch site sees a rocket at an angle of elevation of 32°. at that moment, how high is the rocket above the ground? (nearest tenth of a mile) 3.an airplane approaches an airport landing strip with an angle of depression of 12°. if the airplane is flying at an altitude of 20,000 feet, find the distance on the ground that the plane will need to land. (nearest 1,000 feet) 4.two buildings are located on opposite sides of the street, 40 meters apart. the angle of elevation from the top of the shorter building to the top of the taller building is 53°. if the taller building is 300 meters tall, what is the height of the shorter building? (nearest meter) 5.george is 187 cm tall. his son, ralph, is 142 cm tall. who casts the longer shadow. george when the sun is 65° above the horizon, or ralph when the sun is 56° above the horizon? how much longer? (nearest centimeter)

For which pair of functions is (gof)(a)=|a|-2?

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?