Let event a={the sum is a multiple of 3} and event b={the sum is a multiple of 4}. the p (a)=12/36 and the p (b)= 9/36. how many outcomes are in the intersection of events a and b?

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

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8