Use the Formula for the Sum of the First N $$\sum _ { i = 1 } ^ { 31 } ( - 4 i - 8 )$$

question 99

Multiple Choice

Use the formula for the sum of the first n terms of an arithmetic sequence to find the indicated sum.
- $$\sum _ { i = 1 } ^ { 31 } ( - 4 i - 8 )$$

• A) \(- 2092.5\)
• B) \(- 2170\)
• C) \(- 2232\)
• D) \(- 1984\)

---

Definitions:

Power Saw

A tool that uses electricity or battery power to operate a moving blade, commonly used for cutting wood, metal, or other materials.

Trade Discount

A reduction from the list or retail price of a product, given by sellers to buyers in the business-to-business market.

Jeweller

A specialized professional or establishment in the business of selling, crafting, and repairing jewelry.

Canadian Polar Bear Diamonds

High-quality diamonds sourced from specific mines in Canada, known for their ethical sourcing and purity.