Express the Sum Using Summation Notation $$4 + \frac { 9 } { 2 } + 5 + \frac { 11 } { 2 } + \ldots + 9$$

question 150

Multiple Choice

Express the sum using summation notation. Use a lower limit of summation not necessarily 1 and k for the index of summation.
- $$4 + \frac { 9 } { 2 } + 5 + \frac { 11 } { 2 } + \ldots + 9$$

• A) \(\sum _ { \mathrm { k } = 8 } ^ { 18 } \frac { \mathrm { k } } { 2 }\)
• B) \(\sum _ { \mathrm { k } = 1 } ^ { 18 } \frac { \mathrm { k } } { 2 }\)
• C) \(\sum _ { \mathrm { k } = 8 } ^ { 12 } \frac { \mathrm { k } } { 2 }\)
• D) \(\sum _ { \mathrm { k } = 2 } ^ { 18 } \frac { \mathrm { k } } { 2 }\)

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Definitions:

Collusively

Acting in a coordinated manner, often secretly, between firms to set prices or market conditions, usually to the detriment of competition.

Oligopolistic Firms

Companies that operate in a market structure characterized by a small number of firms dominating the market, leading to limited competition.

Pure Monopoly

A market structure where a single supplier dominates the market, offering a unique product with no close substitutes.

Cartels

Organizations of producers or suppliers who collaborate to control production, pricing, and marketing of a product to maximize collective profits.