F(x)=− 6
1

x
−2
+
2
1

x
−1
−
10
1

x
5
−
15
2

x
−4

2x^(4)-x^(3)=15x^(2) + 3x

i think?

answer: r there any options?

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