Add the Rational Expressions $\frac { x - 5 } { 6 } + \frac { x + 7 } { 7 }$

question 36

Multiple Choice

Add the rational expressions. Be sure to express your answer in simplest form. $\frac { x - 5 } { 6 } + \frac { x + 7 } { 7 }$

• A) \(\frac { 36 } { 13 x + 7 }\)
• B) \(\frac { 13 x - 77 } { 42 }\)
• C) \(\frac { 13 x + 7 } { 42 }\)
• D) \(\frac { 13 x - 7 } { 42 }\)
• E) \(\frac { 2 x + 7 } { 13 }\)

Define control and experimental groups in psychological research.

Understand the diversity in the field of psychology and the various interests of psychologists.

Recognize key figures and ideas in the development of behaviorism.

Understand the historical development of psychology as a discipline.

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Definitions:

Cortex

The outer layer of various organs or structures, such as the brain's cerebral cortex, involved in high-level functions including consciousness, memory, and thought, or the kidney's cortex, involved in filtration and blood processing.

Tracheids

Water-conducting cells in the xylem of vascular plants that are elongated, with thickened cell walls and tapered ends, contributing to the support and transportation of water and minerals.

Vessel Elements

Shorter, wider plant cells than tracheids, found in the xylem, which efficiently transport water and nutrients vertically through the plant.

Perforation Plates

Structures found in the vessel elements of some plants, allowing for the flow of water and nutrients between cells.