Use the Formula for the Sum of the First N $\sum _ { i = 1 } ^ { 25 } ( - 5 i - 3 )$

question 41

Multiple Choice

Use the formula for the sum of the first n terms of an arithmetic sequence to find the indicated sum.
- $\sum _ { i = 1 } ^ { 25 } ( - 5 i - 3 )$

• A) -1700
• B) -1525
• C) -1612.5
• D) -1637.5

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Definitions:

Keynes

Refers to John Maynard Keynes, an economist whose ideas fundamentally changed the theory and practice of macroeconomics and economic policies.

Aggregate Demand

A sum of needs for every good and service across an economy, measured at a particular aggregate price level within a set time period.

Consumer Spending

The sum of expenditures made by all households in an economy on various goods and services.

Investment Spending

Expenditures on physical assets like machinery, buildings, and infrastructure, or on inventory, which are intended to yield productive benefits in the future.