4.13 Ans Key

4.13 Partial Ans Key *must show work

1. a_3=  4/3

2. a_3 = 9/2

3. a_3 = 0

4. 4n^2 +6n +2

5. 165

6. 24

8. sigma i=1 to 4;  2^(i-1)/ 3^i

9. a_n= 4n + 11

10. a_n= -5n + 15

11. a_n= -15n + 265

12. a_n= -2.5n +6.5

13. 265

14. 504

15. -3425

16. 7650

17. 355

18. 490 meters

Last modified: Tuesday, 6 December 2016, 11:03 AM