A toy rocket is shot from a platform 21 feet above the ground. The rocket flies into the air, reaches a maximum height of 48 feet, then falls to the ground. The graph of H(t) below shows the height of this rocket (in feet) t seconds after launch. Height of Rocket (feet) 50- 45 40- 35- 30- 25+ 20- 15- 10- 5- 5 10 15 20 25 30 35 40 45 50 55 60 65 70 Time (seconds) Approximate the average velocity of the rocket over each of the following time intervals. Round to two decimal places. 0 seconds to 30 seconds: 30 seconds to 70 seconds: 0 seconds to 70 seconds: feet per second + feet per second feet per second +

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