The diameter of a faceoff circle on an ice hockey rink is 30 ft find its area

Explain step-by-step how to simplify -5(2x – 3y + 6z – 10).

Aball is thrown from a height of 139 feet with an initial downward velocity of 15 ft/s. the ball's height h (in feet) after t seconds is given by the following. h=139-15t-16t^2 how long after the ball is thrown does it hit the ground? round your answer(s) to the nearest hundredth. (if there is more than one answer, use the "or" button.) t =

Factor the polynomial. b^2 + 4b + 4