Express the set of real numbers between but not including 4 and 5 as follows. (a) In set-builder notation {x | 4 ≤ x ≤ 5} {x | 5 < x < 4} {x | 4 ≤ x < 5} {x | 4 < x < 5} {x | 5 < x ≤ 4} (b) In interval notation

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

positive

step-by-step explanation:

the quadrant is facing upwards