Turtoneom has a half-life of 4 years. suppose a company has 400mg of turtoneom. how much will be left after 20 years?

Find the zeros of the function. write the smaller solution first, and the larger solution second f(x)= (x+6)^2-49

Multiplying an even number of negative numbers gives an answer that is choose from:

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 =