A computer randomly selects a number from the given set. {2, 4, 6, 9, 16, 44, 51, 60, 78)
What is the probability that a number less than 10 is selected?
Fnter your answer as a fraction, in simplest form, in the box.

Aball is thrown from a height of 139 feet with an initial downward velocity of 15 ft/s. the ball's height h (in feet) after t seconds is given by the following. h=139-15t-16t^2 how long after the ball is thrown does it hit the ground? round your answer(s) to the nearest hundredth. (if there is more than one answer, use the "or" button.) t =