30
if one angle of a set of vertical angles measures 63°, the sum of the vertical angles is

a. 90
b. 360
c. 180
d. none of the above.

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?