The average speed of a train, r, is found by dividing its distance traveled, d, by its time spent traveling, t. write a formula for the average speed of a train. then solve the formula for d.

distance = rate x time

Step-by-step explanation: divided by distance then multiply by rate

Center : (-1,-2)

Radius : 5

Step-by-step explanation:

The equation for the circle is given by

Comparing, the equation with

2g = 2 => g = 1

2f = 4 => f = 2

c = -20

Now, the center of the circle = (-g,-f) = (-1, -2)

Center of the circle is given by

Therefore, the radius of the circle is 5.