Por meio do plano cartesiano, observa-se que (0,0), (0,2), (4,2) e (5,0) representam pares ordenados que correspondem aos vértices de um trapézio. Determine a área desse trapézio

Aresearcher believes increased perceived control influence the well-being of residents at a nursing home. to test this , she allowed one group of residents to have control over their daily lies, (where to eat etc) . the other group of 5 residents had these deceisions made by staff. the resident's feelings of well-being were measured on a 10 point scale at the end of a one month trial period. is there a difference on well-being?