need help. this is my last question for this one assignment if you are open to helping with other assignments we can talk on other social media platforms if you are open to doing so but for now just help w/ this

(hurry! ) which expression is equivalent to the following complex fraction?

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 =

What is the value of the expression i 0 × i 1 × i 2 × i 3 × i 4? 1 –1 i –i