What transformation occurs(vertically stretched, vertically compressed, reflection, translation, rotation, etc) happens when a function , f(x) is turned into -f(x).

What are the equivalent ratios for 24/2= /3= /5.5=108/ = /15

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 =

The? half-life of a radioactive substance is 20 years. if you start with some amount of this? substance, what fraction will remain in 120 ? years