A ROCKET IS LUNCHED WITH AN INITIAL UPWARD VELOCITY OF 320 FEET PER SECOND FROM AN INITIAL HEIGHT OF 15 FEET. THE FUNCTION h(t)=16t^2 +320t +15 MODLES THE HEIGHT OF THE ROCKET IN FEET t SECONDS AFTER IT WAS LUNCHED. For how many seconds is the height of the rocket greater than or equal to 1,039 feet?

Captain umaima has a ship, the h.m.s. khan. the ship is two furlongs from the dread pirate nadia and her merciless band of thieves. the captain has probability 3/7 of hitting the pirate ship. the pirate only has one good eye, so she hits the captain's ship with probability 2/5. if both fire their cannons at the same time, what is the probability that the captain hits the pirate ship, but the pirate misses.