SOLUTION: For questions 1-6 determine whether each series is arithmetic or geometric. Then evaluate the series to the given term. 4. 42+55+68+...; S12 5. -20-12-4+4+...; S10 6. 2-6+

Algebra ->  Sequences-and-series -> SOLUTION: For questions 1-6 determine whether each series is arithmetic or geometric. Then evaluate the series to the given term. 4. 42+55+68+...; S12 5. -20-12-4+4+...; S10 6. 2-6+      Log On


   

Question 198400: For questions 1-6 determine whether each series is arithmetic or geometric. Then evaluate the series to the given term.
4. 42+55+68+...; S12
5. -20-12-4+4+...; S10
6. 2-6+18-54+...; S10

Answer by arallie(162) About Me  (Show Source):
You can put this solution on YOUR website!
4. 42+55+68+...; S12=198 Arith
5. -20-12-4+4+...; S10=60 Arith
6. 2-6+18-54+...; S10=59051 Geo