Use the Appropriate Formula to Find the Indicated Figurate Number $\mathrm { P } _ { 6 } = 21$

question 128

Multiple Choice

Use the appropriate formula to find the indicated figurate number.
-the 6th pentagonal number

• A) \(\mathrm { P } _ { 6 } = 21\)
• B) \(\mathrm { P } _ { 6 } = 36\)
• C) \(\mathrm { P } _ { 6 } = 57\)
• D) \(\mathrm { P } _ { 6 } = 51\)

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Definitions:

Cerebral Cortex

The outer layer of neural tissue covering each hemisphere of the brain, crucial for higher brain functions such as thought, language, and consciousness.

Outer Surface

The external layer or boundary of an object, material, or living organism.

Folds

Occur in various contexts, such as geology where they are bends in layered rocks, or in biology, as in the folding of proteins into complex structures.

Split Brain

A condition resulting from the severance or damage of the corpus callosum, leading to a lack of communication between the right and left hemispheres of the brain.