The range of the sprinkler will be the area of a circle with a radius of 40 feet.
area of circle = 
area of circle = 
area of circle =
=
answer:
For this case we have a quadratic equation,
, of the form 
Where:

We can solve the equation by factoring, that is, we bias two numbers that multiplied give as a result -60 and added as a result 28.
These numbers are:

Then, the factorization is given by:

The roots are:

Answer:

The answer is -5 isjsjshsj