a supply company manufactures copy machines. the unit cost C (the cost in dollars to make each copy machine) depands on the number of machines made. if x machines are made, then the unit. coat is given by the function. C(x)=0.7^2-490x+101,483. what is the minimum unit cost. do not round​

There are several unique characteristics of qualitative research that make it distinct from quantitative research. describe the aspects of qualitative research and the elements of design that contribute to the rigor of the work. what actions of the researcher can compromise the integrity of the findings?

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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?