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Use the Formula for the Sum of the First N ∑i=127(2i−5)\sum _ { \mathrm { i } = 1 } ^ { 27 } ( 2 \mathrm { i } - 5 )

Question 114

Multiple Choice

Use the formula for the sum of the first n terms of an arithmetic sequence to find the indicated sum.
- ∑i=127(2i−5) \sum _ { \mathrm { i } = 1 } ^ { 27 } ( 2 \mathrm { i } - 5 )


A) 621
B) 594
C) 729
D) 823.5823.5

Correct Answer:

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