What is the general form of the equation of a circle with center at (a, b) and radius of length m? A.
x2 + y2 − 2ax − 2by + (a2 + b2 − m2) = 0

B.
x2 + y2 + 2ax + 2by + (a2 + b2 − m2) = 0

C.
x2 + y2 − 2ax − 2by + (a + b − m2) = 0

D.
x2 + y2 + 2ax + 2by + a2 + b2 = -m2

How can you construct perpendicular lines and prove theorems about perpendicular lines

What unit of been sure would be appropriate for the volume of a sphere with a radius of 2 meters

When a 757 passenger jet begins its descent to the ronald reagan national airport in washington, d.c., it is 3900 feet from the ground. its angle of descent is 6 degrees. how far must the plane fly to reach the run way? a. 37,106 ft b. 37,310.4 ft c. 23,456.6 ft d 2,492.7 ft