Aquadratic equation is shown below:

9x2 - 36x + 36 = 0

part a: describe the solution(s) to the equation by just determining the discriminant. show your work. (3 points)

part b: solve 2x2 - 9x + 7 = 0 using an appropriate method. show the steps of your work and explain why you chose the method used.(4 points)

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 answer is 13

step-by-step explanation:

5*5=25

12*12=144

25+144=169

169^2=13