Ateacher uses a strong slingshot to release an object from the top of a school high in the air. the function a(t)=-16t^2+128t+50 gives the approximate altitude, in feet, of the object t seconds after it is released. how long will it be before the object hits the ground? round to the nearest second.

Which of the following is an equation of a line parallel to the equation y=4x+1?

Dawn is selling her mp3 player for 3 4 of the original price. the original price for the mp3 player was $40. how much is she selling her mp3 player for?

In physics, if a moving object has a starting position at so, an initial velocity of vo, and a constant acceleration a, the the position s at any time t> o is given by: s = 1/2 at ^2 + vot+so solve for the acceleration, a, in terms of the other variables. for this assessment item, you can use^to show exponent and type your answer in the answer box, or you may choose to write your answer on paper and upload it.