An industrial psychologist working for a particular manufacturing company was concerned that one of their four plants might have consistently more worker grievances than the others. Records are kept for a month during which Plant A had 15 grievances, Plant B had 34, Plant C had 17, and Plant D had 20. What is/are the dependant and independant variable?

Which of the following are accepted without proof in a logical system? check all that apply.

Daniel expanded the expression as shown below -2(-8x-4y+3/4)=-10x-8y-11/4 what errors did he make? check all that apply

Apinhole camera is made out of a light-tight box with a piece of film attached to one side and pinhole on the opposite side. the optimum diameter d(in millimeters) of the pinhole can be modeled by d=1.9[ (5.5 x 10^-4) l) ] ^1/2, where l is the length of the camera box (in millimeters). what is the optimum diameter for a pinhole camera if the camera box has a length of 10 centimeters