Which pair of ratios is equivalent 8: 32 and 16: 64 or 52: 56 and 17: 19 or 34: 40 and 16: 20 or 6: 8 and 16: 12 immediately

Find the zero function by factoring (try to show work) h(x)=-x^2-6x-9

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?

Cole says the distance between points (-5,0) and (0,-5)is 5 units. is he correct? explain why or why not.