20 X3/5 in simplest form

Restrictions on f(x) = 1/x+5 and g(x) = x-2

Which expression is equivalent to 4 square root 6 divided by 3 root 2

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 =