The equation of a circle:

(h,k) - the coordinates of the centre
r - the radius
The midpoint of the diameter is the centre of a circle.
The coordinates of the midpoint:

(x₁,y₁), (x₂,y₂) - the coordinates of endpoints

The centre of the circle is (2,5).
The radius is the distance between an endpoint of the diameter and the centre.
The formula for distance:


The radius is 5.
Answer:
[-6, -4, 2, 5, 8]
Step-by-step explanation:
take the first number in each pair and put them in numerical order (least to greatest)
Using the rules of cosines, the <span>measure of the turn between the second and third legs of the race</span> is given by
Answer:
a. 14,000
b. 140,000
Step-by-step explanation: