A. write the piecewise function for the cost per unit for production of units in the wichita factory. that is, state the function , where is the number of units produced. b. what is the cost per unit for 35,000 units? c. according to the graph, if only one unit was produced, the cost per unit would be $1.00. in reality, the company would not call in its worker and start up the equipment to produce one unit. what safeguard do you think that many manufacturers use to avoid this type of problem? (5 points)

Stu and ambrose are working together on a study of whether diet is related to students' mental health. first, they randomly select 10 students from the student center and 10 students from the office of counseling and psychological services. then, they ask students to rate their diet in terms of healthiness on a scale of 1-100 before completing a 20-item mental health survey. a) name one of the constructs being studied b) how was the construct you named above operationally defined in this experiment? e) was the variable you described above their independent variable, their dependent variable, or a controlled variable? d) what is a confounding variable? what is a potential confound in this study?