Model the situation with a dynamical system. Use your model to answer the question.You take a 259-mg dose of an antibiotic every 5 hours. Your body eliminates 44% of the drug in a 
period. How much antibiotic will be in your bloodstream after two doses?
A. Dn+1 = 0.56Dn + 259, n = 0, 1, 2, ..., where D0 = 0; 404.04 mg
B. Dn+1 = 56Dn + 259, n = 0, 1, 2, ..., where D0 = 0; 14,763.00 mg
C. Dn+1 = 0.44Dn + 259, n = 0, 1, 2, ..., where D0 = 0; 372.96 mg
D. Dn+1 = 0.56Dn + 259, n = 0, 1, 2, ..., where D0 = 259; 663.04 mg
Answer: A
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Solve the problem.Suppose c(x) = x3 - 22x2 + 20,000x is the cost of manufacturing x items. Find a production level that will minimize the average cost of making x items.
A. 11 items B. 13 items C. 12 items D. 10 items
Solve the equation.
- 
= 
A. -7
B. 
C. -1
D. 1
Add or subtract as indicated.(9n6 - 2n5 + 5) + (7n6 - 4n5 - 2)
A. 13n11 B. 16n6 - 6n5 + 3 C. 16 - 6n6 + 3n5 D. 12n6 + 5n5 - 4
List the terms of the expression. Then identify the coefficient of each term.9t - 3
A. 9t, -3; 9, 3 B. 9t, -3; 9, -3 C. 9t; 9 D. t; 9, -3