#25
Extracted text: 7. Sn= 3sn-1 - 8, so = 10. Sn=-Sn-1T 9. Sn=Sn-1-5, So = 100 -2s,-1 9, So= 7 12. Sn 10s,-1 - 45, so 2 11 11.) Sn= 14. Sn=-2sn-1 Sn-2, So= 3, s1 = 1 13. Sn= Sn-1 + 2s-2, S0 = 9, S1= 0 - 16s-2, So = 6, S1 = 20 www 16. Sn = 4sn-2, So =-1, S1 = -14 15. Sn=8Sn-1 18. Sn = 6s1-1-9Sn-2, So= 1, s1 = 9 17. sn= 9sn-2, So= 1, S1 9 19. Sn=-4sn-1 20. Sn -851-1 15sn-2, So = 2, s1 = 2 15sn-2, So= 2, S1 2 4Sn-2, S0 =-4, S1 2 10ST-1-25sp-2, So = -7, s1 = -15 23. Sn=-5sn-1 - 4sn-2, So = 3, s1 15 - 10s,-1 24s-2, So= 1, S1 = 0 4 21. Sn= 22. Sn= 24. Sn= 4Sn-14sn-2, So=-3, s1 25. In order to combat hypertension, Mr. Lorenzo is to take a capsule containing 25 mg of a drug each morning after awaking. During the next 24 hours, 20 percent of the amount of the drug in the body is eliminated. (a) Write a difference equation and initial conditions giving the amount of the drug in Mr. Lorenzo's body immediately after he takes the nth capsule. (b) How much of the drug will there be in Mr. Lorenzo's body immediately after he takes the eighth capsule? (c) To what level will this drug eventually accumulate in his body? 26. In Mayville, 90 percent of the existing dog licenses are reissued each year, and 1200 new licenses are issued. In 2000 there were 15,000 dog licenses issued. (a) Write a difference equation and initial conditions describing the number of dog licenses Mayville will issue n years after 2000.