Suppose the velocity, v, of an object is given by
v=2t² -5t-12
where t is time in seconds. Find the intervals where
the velocity is positive.

Finally, the arena decides to offer advertising space on the jerseys of the arena's own amateur volley ball team. the arena wants the probability of being shortlisted to be 0.14 what is this as a percentage? what is this as a fraction? what is the probability of not being shortlisted? give your answer as a decimal.