Describe the mechanism of a typical operant chamber.

Operant chamber (also known as Skinner’s box) is a typical laboratory chamber (apparatus) in which the behavior and learning process of rats was examined. This chamber is mostly empty, it has a food dispenser, response lever which gives food when it’s pressed and sometimes electrical greed. With this chamber, Skinner has learned in his research that rats firstly press the lever by mistake, but that begins to happen more and more. After some time, rats learn that when they press the lever they get food as a reward. At the other experiment, rat have learned the same way that when they press the lever, the electrified grid is turned off.

if triangle abc is congruent to triangle def, their interior angles are congruent, because congruent parts of congruent triangles are congruent (cpctc).

that means ∠d is congruent to ∠a; ∠d is equal to 8x - 2.

interior angles of all triangles add to equal 180 degrees, so you can set the sum of these interior angle values equal to 180 and solve for x.

180 = (8x - 2) + 22 + 72

180 = 8x - 2 + 22 + 72

180 = 8x + 92

88 = 8x

11 = x

x = 11