Find the Sum of the Arithmetic Series $$\sum _ { i = 1 } ^ { 18 } ( - 5 i - 8 )$$

question 57

Multiple Choice

Find the sum of the arithmetic series. $$\sum _ { i = 1 } ^ { 18 } ( - 5 i - 8 )$$

• A) \(- 999\)
• B) \(- 53\)
• C) \(- 49\)
• D) \(- 882\)

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Definitions:

Net Cash Inflows

The total cash receipts minus cash payments over a period of time from operational, financial, and investing activities.

Profitability Index

A financial metric that measures the return on a project or investment relative to its cost, calculated by dividing the present value of future cash flows by the initial investment cost.

Internal Rate

Typically refers to the internal rate of return (IRR), which is a financial metric used to estimate the profitability of potential investments.

Payback Period

The amount of time it takes for an investment to generate cash flows sufficient to recover its initial cost, commonly used to assess the feasibility of projects.