If a polynomial function f(x) has roots -2+ Squar root 8 and 9, what must be a factor of f(x)?
(x-(8-v2)
(x-(2-v8)
(x-(-2-v18)
(x-(-8+ v2))

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

9987

step-by-step explanation:

if you are looking for the unit rate then the answer would be 9 because unit rate is distance divided by time.

step-by-step explanation: