F(x) = -2x^2 + 12x + 3
Find the a, b, and c

Step-by-step explanation:

a = coffcient of x ² = - 2

b = cofficient of x = 12

c = constant term = 3

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answer: a.

step-by-step explanation: the answer is a. because, you need to converge the fractions to find a solution.

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