Express the Sum Using Summation Notation $$15 + 19 + 23 + 27 + \ldots + 47$$

question 67

Multiple Choice

Express the sum using summation notation. Use a lower limit of summation, not necessarily 1, and k for the index of summation.
- $$15 + 19 + 23 + 27 + \ldots + 47$$

• A) \(\sum _ { k = 2 } ^ { 10 } 4 k + 7\)
• B) \(\sum _ { k = 1 } ^ { 10 } 4 k + 7\)
• C) \(\sum _ { k = 0 } ^ { 32 } 4 k + 7\)
• D) \(\sum _ { k = 2 } ^ { 32 } 4 k + 7\)

---

Definitions:

Sympathetic Nervous System

A part of the autonomic nervous system that prepares the body for quick action in emergencies, the 'fight or flight' response.

Limbic System

A complex system of nerves and networks in the brain, involved in basic emotions (such as fear and pleasure), drives (such as those for food and sex), and the formation of memories.

Negative Emotions

Feelings that are generally considered unpleasant or undesirable, such as anger, sadness, fear, or jealousy.

Infection

The invasion and multiplication of microorganisms such as bacteria, viruses, and fungi that are not normally present within the body, often causing illness.