What are the zeros of the function f(x)=x2−10x+21? Select all that apply.

77

−1negative 1

−7negative 7

−3negative 3

33

1010

1/800 is the right answer

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

it would take 7/10 of an hour too fill the pool.

step-by-step explanation:

30005

yes ok