Aballoon rises at the rate of 8 feet per second from a point on the ground 12 feet from an observer. to 2 decimal places in radians per second, find the rate of change of the angle of elevation when the balloon is 9 feet above the ground. type your answer in the space below. if your answer is a number less than 1, place a leading "0" before the decimal point

Someone answer asap for ! a ball is rolled down a ramp. the height, f(x), in meters, of the ball x seconds after it is released is modeled by the function f(x) = x²- 10x + 25 for all values of x from 0 to 5. which statement about the ball is true? a. the maximum height of the ball is 5 meters b. the height of the ball increases from 0 to 5 meters above the ground. c. the ball has traveled 5 meters when it reaches the bottom of the ramp. d. the ball has been traveling for 5 seconds when it reaches the bottom of the ramp