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Which of the following would be TRUE about dental erosion:  

Which of the following is NOT a purpose for using the mouth mirror:    

Which structure of a biofilm protects the bacterial microcolonies from systemic antibiotics, the body’s immune system, and oral antimicrobial mouthrinses?  

The Gracey #13-14 curet: (1)   is a universal curet (2)   is designed only for posterior teeth (3)   is an area-specific curet (4)   can be used for supragingival deposits  

The bacterial by-product that initiates gingival inflammation is:  

Gingivitis is initiated by:  

A cauliflower like growth near the oral cavity of a young dog might be: 

Question 2 (40 points) Rohan is putting together a high-energy trail mix for his next hiking trip. At the grocery store, he can buy ingredients by the ounce for his mix. The items cost    per ounce, for , respectively. There are   nutritional components that Rohan must consider when making his mix. (An example of a nutritional component is protein.) The mix should include at least and no more than total grams of nutritional component , for . One ounce of ingredient has grams of nutritional component , for all , . Formulate a linear program to help Rohan decide the composition of his mix that minimizes the cost. (You need to write all the parameters, decision variables, objective, and constraints and explain/describe EACH of them in your answer.)

Question 2 (40 points) Rohan is putting together a high-energy trail mix for his next hiking trip. At the grocery store, he can buy ingredients by the ounce for his mix. The items cost per ounce, for , respectively. There are   nutritional components that Rohan must consider when making his mix. (An example of a nutritional component is protein.) The mix should include at least and no more than total grams of nutritional component , for . One ounce of ingredient has grams of nutritional component , for all  , . Formulate a linear program to help Rohan decide the composition of his mix that minimizes the cost. (You need to write all the parameters, decision variables, objective, and constraints and explain/describe EACH of them in your answer.)

Question 3 (30 points) Paul’s company produces the drug Rozac from 4 chemicals. Today, they must produce at least 3,000 lb of the drug. The three active ingredients in Rozac are A, B, and C. By weight, at most 6% of Rozac must be ingredient A, at least 3% of Rozac must be ingredient B, and at most 9% of Rozac must be ingredient C. Rozac is produced by blending the 4 chemicals. The cost per pound of each chemical and the amount of each active ingredient in 1 lb of each chemical are given below in the table: Chemical Cost ($ per lb) A B C 1 7 0.11 0.02 0.07 2 14 0.06 0.03 0.13 3 12 0.10 0.05 0.08 4 9 0.14 0.09 0.04 It is necessary that at most 500 lb of chemical 3 are used. Formulate an LP that determines the cheapest way of producing today’s batch of Rozac. (You need to write all the decision variables, objective, and constraints and explain/describe EACH of them in your answer. You do NOT need to write out the parameters in this numerical example.)