Question: Directions: Find the indicated sum for each arithmetic series. 16. 4+6+8+10+...; S21 17. {24+31+ 38+ 45+...); S, 18. {15+4+(-7)+(-18) + ...}; S 25 19.
Directions: Find the indicated sum for each arithmetic series. 16. 4+6+8+10+...; S21 17. {24+31+ 38+ 45+...); S, 18. {15+4+(-7)+(-18) + ...}; S 25 19. (5k+1) k=1 14 20. (17-6n) =9 35 21. (3x-12) x=11
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