Multiple Choice Simplify each polynomial.

A2 + 5a – 3a2
A. 5a + 2a2
B. 5a – 2a2
C. 2a2 + 5a
D. 5a – 3a2

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?