an arrow is shot up into the air with an initial velocity of 60 m/s and it’s height is given by h=-5t^2+60t where h is in meters and t is in seconds. how high does the arrow go? how long does the arrow stay in flight?

Mariah is randomly choosing three books to read from the following: 5 mysteries, 7 biographies, and 8 science fiction novels. which of these statements are true? check all that apply. there are 20c3 possible ways to choose three books to read. there are 5c3 possible ways to choose three mysteries to read. there are 15c3 possible ways to choose three books that are not all mysteries. the probability that mariah will choose 3 mysteries can be expressed as . the probability that mariah will not choose all mysteries can be expressed as 1 −