Segment ab falls on line 6x + 3y = 12. segment cd falls on line 4x+2y = 8 what is true about segments ab and cd
they are parallel because they have the same slope of -2
they are parallel because they have the same slope of 1/2
they are lines that lie exactly on top of one another because they have the same slope and the same y - intercept
they are lines the lie exactly on top of one another because they have the same slope and a different y-intercept

answer: hi

step-by-step explanation:

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m

-12 > a

step-by-step explanation:

-11 > 1 + a

subtract 1 from each side

-11-1 > 1-1+a

-12 > a