Solve Combined Variation Problems
- $r$ Varies Directly as the Square Of

question 144

Multiple Choice

Solve Combined Variation Problems
- $r$ varies directly as the square of $s$ and inversely as $t$ .

• A) \(\mathrm { r } = \frac { \mathrm { ks } ^ { 2 } } { \mathrm { t } }\)
• B) \(r = \frac { k t } { s ^ { 2 } }\)
• C) \(\mathrm { r } = \mathrm { k } + \mathrm { s } ^ { 2 } - \mathrm { t } ^ { 2 }\)
• D) \(\mathrm { r } = \mathrm { ks } ^ { 2 }\)

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Definitions:

Tau Protein

A protein that stabilizes microtubules, with abnormal accumulations being linked to neurodegenerative diseases such as Alzheimer's.

Temporal Lobes

The regions of the brain located on either side of the head above the ears, involved in processing auditory information and encoding memory.

Hippocampus

An area in the brain linked to the creation, structuring, and retention of memories.

Prefrontal Lobes

Regions of the frontal lobes of the brain associated with complex cognitive behavior, personality, decision making, and moderating social behavior.