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Bas_tet [7]
2 years ago
15

(50 POINTS) Write out each sum.

Mathematics
1 answer:
valentina_108 [34]2 years ago
4 0

Step-by-step explanation:

12. n^2+2n

if you insert 1 for k and then work up by inserting 2 for k and adding those together and stoping at n.

13. 8-2(2^n)

if you insert 3 for k and then work up by inserting 4 for k and adding those together and keep on going but stopping at n.

Hope that helps :)

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