Use the Formula for the Sum of the First N $$\sum _ { \mathrm { i } = 1 } ^ { 49 } ( 5 \mathrm { i } + 5 )$$

question 64

Multiple Choice

Use the formula for the sum of the first n terms of an arithmetic sequence to find the indicated sum.
- $$\sum _ { \mathrm { i } = 1 } ^ { 49 } ( 5 \mathrm { i } + 5 )$$

• A) \(6247.5\)
• B) \(6541.5\)
• C) 6713
• D) 6370

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