6.1.2 Exam: Semester 2 Exam Question 13 of 40 What is the equation of a circle with center (1, -4) and radius 2? A. (x - 1)2 + ( +4)2 = 2 B. (x - 1)2 + (6 + 4) = 4 C! (x + 1)2 + IV-412 - 4 O D. (x - 1)² = (x + 4)2 = 4

When the solutions to each of the two equations below are graphed in the xy-coordinate plane, the graphs of the solutions intersect at two places. write the y-cordninates of the points of intersection in the boxes below in order from smallest to largest. y=2x y=x^2-3

What is the anwers for 9+2x=5x-3-x

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