Write this is standard form

3x-4=12

For f(x)=2x+3 and g(x)=x^2- 8 find (f+g) (x)

In the diagram below? p is circumscribed about quadrilateral abcd. what is the value of x

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 =