AB=(8/-4). BC=(6/4)
a) express AC as a column vector

Answer a) AC = (?/?)

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

the closest answer i got was 75 divided by 9 = 8.3

8 pages of sport cards 9 sports cards on each page

hope that

the answer is c i hope you got it right because i did do some math over this, just not sure how to upload.