What are the integer solutions of the inequality |x| < 4?
a. –3, –2, –1, 0, 1, 2, and 3
b. 0, 1, 2, 3, and 4
c. –4, –3, –2, –1, 0, 1, 2, 3, and 4
d. 0, 1, 2, and 3

For the equations below which statement is true ?

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

Are the corresponding angles congruent? explain why or why not.