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1. A particle follows the trajectory [x(t) = 7t +9 [y(t) = -1 + 12t with t in seconds and distance in centimeters. (a)

1. A particle follows the trajectory [x(t) = 7t +9 [y(t) = -1 + 12t with t in seconds and distance in centimeters. (a) What is the particle's maximum height? (b) When does the particle hit the ground, and how far from the origin does it land?

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