Answer:
Step-by-step explanation:
The quadratic formula would be the following...

where the original quadratic equation would be represented as follows

Using this information and the information provided in the image we can plug in the quadratic equation values in the image to form the quadratic formula.

That would be the correct order for the values.
Answer:
x value is 10 as per as the question its value is 10
The formula for finding circumference is Pi multiplied by diameter.
3.14 x 25ft = 78.5 feet
This would round up to 79 feet in circumference.