A fire watch tower in a state forest is 250 feet tall. The height, h. of an object dropped from the top of the tower after t seconds is modeled by the function h (t) = —16t^2 + 250. How long would it take an object dropped from the tower to reach a platform 54 feet above the ground?

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)

Ming says that 0.24 > 1/4 because 0.24= 2/4. which best explains mings error