Amodel rocket is launched from a raised platform at a speed of 144 feet per second. its height in feet is given by h(t) = -16t 2 + 144t + 20 (t = seconds after launch). after how many seconds does the object reach its maximum height? 20 seconds 6.5 seconds 2.25 seconds 4.5 seconds

Someone answer asap for ! the boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a. e = 2b - 212 b. b = 2e - 212 c. e = -2b + 212 d. b = -2e + 212