Identify the vertex of the graph. Tell whether it is a minimum or maximum. ring

O (2,-4); minimum
(-4, 2); minimum
and
O (2, -4); maximum
O.(-4, 2); maximum

(23*2)-12=x     x=34

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