Express the Sum Using Summation Notation $$2 ^ { 3 } + 3 ^ { 3 } + 4 ^ { 3 } + \cdots + 8 ^ { 3 }$$

question 220

Multiple Choice

Express the sum using summation notation.
- $$2 ^ { 3 } + 3 ^ { 3 } + 4 ^ { 3 } + \cdots + 8 ^ { 3 }$$

• A)
• \(\sum _ { k = 1 } ^ { 8 } k ^ { 3 }\)
• B)
• \(\sum _ { k = 3 } ^ { 8 } ( k - 1 ) ^ { 3 }\)
• C)
• \(\sum _ { k = 2 } ^ { 8 } k ^ { 3 }\)
• D)
• \(\sum _ { k = 2 } ^ { n } k ^ { 3 }\)

---

Definitions:

Merchandise Balance

The difference in value between a country's imports and exports of goods.

Services Balance

The difference between a country's exports and imports of services.

Balance Of Trade

The difference between a country's exports and imports of goods.

Comparative Advantage

An economic principle that states that an entity (e.g., country, region, or individual) can produce a good at a lower opportunity cost compared to others, leading to more efficient trading possibilities.