In the diagram, AB=4, DC=6 and AB is parallel to DC. If

Solve each equation using the quadratic formula. find the exact solutions. 6n^2 + 4n - 11

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?

Me d is also an option but i couldn't get it in the picture