[NO LINKS PLS] The graphs of the equations y-2x=3 , 2y+x =11, and 2y-4x=8 form three sides of a parallelogram. Complete the parallelogram by writing an equation for the graph that forms the fourth side. Justify your answer.

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 absolute value of the complex number -4-sqrt2i

Worth 30 points! in this diagram, both polygons are regular. what is the value, in degrees, of the sum of the measures of angles abc and abd?