You throw a ball at a height of 5 feet above the ground. The height h (in feet) of the ball after t seconds can be modeled by the equation, h=(-16t)^2 + 44 + 5. The question is:
After how many seconds does the ball reach a height of 15 feet?
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Triangle xyz has vertices x(1,3), y(0,0)

Pranza plotted point a in the coordinate plane below.

Every weekday, mr. jones bikes from his home to his job. sometimes he rides along two roads, the long route that is shown by the solid lines. other times, he takes the shortcut shown by the dashed line. how many fewer kilometers does mr. jones bike when he takes the shortcut instead of the long route?