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1.
Write the sum using summation notation, assuming the suggested pattern continues.

1 – 3 + 9 – 27 + … (2 points)

2.
Write the sum using summation notation, assuming the suggested pattern continues.

-9 – 4 + 1 + 6 + … + 66 (2 points)

3.
Write the sum using summation notation, assuming the suggested pattern continues.

16 + 25 + 36 + 49 + … + n2 + … (2 points)

4.
Find the sum of the arithmetic sequence.

-10, -7, -4, -1, 2, 5, 8 (1 point)
11
-70
0
-7
5.
Find the sum of the geometric sequence. (1 point)

1,

93
6.
Find the sum of the first 8 terms of the sequence. Show all work for full credit.

1, -3, -7, -11, … (2 points)

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