Answer:
B / px= k
Step-by-step explanation:
B = kpx
Divide each side by px
B / px= kpx/px
B / px= k
Well, difference means subtractions so we need to subtract 2 and c
2-c
5,280 feet → 1 mile
63,360 feet → 63,360/5,280 = 12 miles
60 x 60 seconds → 1 hour
3,400 seconds → 3,400/3,600 = 17/18 hours
Nina's rate = 12 miles / (17/18) hours = 12 12/17 miles per hour.
Answer:

Step-by-step explanation:
The given equation is:

<u>Formula:</u>
A quadratic equation
has the following roots:

Where 
Comparing the equation with 
a = 1
b = -4
c= -38
Calculating D,

Now, finding the roots:

So, the solution is:
