Notice of the angles in the center of the pattern meet to form a circle. Let a° Represent the measure of each pink central angle and b° Represent the measure of each Greene central angle. Angles a and b are angles.

Sam claims that cos x =sin y if x and y are congruent angels. is sam correct ?

Which shows the correct substitution of the values a,b and c from the equation 1=-2x+3x^2+1

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?