19. The quadratic function f(x) = -16x + 11x models the height, in feet, of a flying fish above the water after x seconds. How long is the flying fish out of the water?​

Ametalworker has a metal alloy that is 30? % copper and another alloy that is 55? % copper. how many kilograms of each alloy should the metalworker combine to create 90 kg of a 50? % copper? alloy?

Segment xz is bisected by point y. if xy = 12x, and the measure of xz = 18x – 6, solve for x

Solve for x and y a x= 13.3 y= 16.7 b x= 23.3 y= 12.5 c x= 7.5 y= 16.7 d x=7.5 y= 12.5