A ball is thrown upward with an initial velocity of 32 ft/sec from a height of 768ft. Its height h, in feet, after t seconds is given by h(t)=-16t^2+32t+768. After how long will the ball reach the ground?

Use set builder notation to represent the following set: { -3, -2, -1, 0}

Jackie purchased 3 bottles of water and 2 cups of coffee for a family for $7.35. brian bought 4 bottles of water and 1 cup of coffee for his family for $7.15. how much does each bottle of water cost? how much does each cup of coffee cost? i need this done

Place the following steps in order to complete the square and solve the quadratic equation,