What equation results from completing the square and then factoring?
x2 - 8x = 39
o a. (x-8)2 = 55
o b. (x-8)2 = 23
o c. (x-4)2 = 23
o d. (x-4)2 = 55

What is the distance between the points (2 -3) and (-6 4) on the coordinate plane

You are at a restaurant and owe $38 for your meal. you want to leave a 20% tip. how much will your tip be?

Apinhole camera is made out of a light-tight box with a piece of film attached to one side and pinhole on the opposite side. the optimum diameter d(in millimeters) of the pinhole can be modeled by d=1.9[ (5.5 x 10^-4) l) ] ^1/2, where l is the length of the camera box (in millimeters). what is the optimum diameter for a pinhole camera if the camera box has a length of 10 centimeters