............................................... Flight of a Model Rocket The height (in feet) attained by a rockett sec into flight is given by the function I13 + 10t2 + 21t + 5 3 (t > 0). h(t) = - When is the rocket rising? (Round your answers to the nearest integer.) (0, 10) (0, 21) О (0, 32) О (10, 21) O (21, 32) When is it descending? (Round your answers to the nearest integer.) О (0, 10) (0, 21) O (0, 32) О (10, 21)

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