CHER PRACTICE ANOTHER Watching a Rocket Launch At a distance of 3,000 ft from the launch...

Transcribed Image Text:

CHER PRACTICE ANOTHER Watching a Rocket Launch At a distance of 3,000 ft from the launch site, a spectator is observing a rocket being launched. Suppose the rocket lifts off vertically and reaches an altitude of x ft (see the accompanying figure). Rocket Spectator Launching pad 3000 ft (a) Find an expression giving the distance between the spectator and the rocket. D = (b) What is the distance (in feet) between the spectator and the rocket when the rocket reaches an altitude of 21,000 ft? (Round your answer to the nearest foot.) ft CHER PRACTICE ANOTHER Watching a Rocket Launch At a distance of 3,000 ft from the launch site, a spectator is observing a rocket being launched. Suppose the rocket lifts off vertically and reaches an altitude of x ft (see the accompanying figure). Rocket Spectator Launching pad 3000 ft (a) Find an expression giving the distance between the spectator and the rocket. D = (b) What is the distance (in feet) between the spectator and the rocket when the rocket reaches an altitude of 21,000 ft? (Round your answer to the nearest foot.) ft