Solve this system of equations: 2x - y = 7 5x + y = 21

In which form is the following function written? y = - 2(x – 3)(x + 5)

Rewrite the following quadratic functions in intercept or factored form. show your work. y = x^2 + 7x + 10

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.