Simplify the Expression $\frac { 7 y - y ^ { - 1 } } { 3 - y ^ { - 2 } }$

question 99

Multiple Choice

Simplify the expression. $\frac { 7 y - y ^ { - 1 } } { 3 - y ^ { - 2 } }$

• A) \(\frac { y \left( 7 y ^ { 2 } - 1 \right) } { 3 y ^ { 2 } - 1 } , y \neq 0\)
• B) \(\frac { 6 y ^ { 2 } } { 3 y ^ { 2 } - 1 } , y \neq 0\)
• C) \(\frac { 3 y } { 7 y - 1 } , y \neq 0\)
• D) \(\frac { 2 y ^ { 2 } } { 3 y ^ { 2 } - 1 } , y \neq 0\)
• E) \(\frac { 7 y } { 3 y - 1 } , y \neq 0\)

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Definitions:

Twin Studies

Research strategies that compare monozygotic (identical) and dizygotic (fraternal) twins to understand the influence of genetics versus environment on various traits and disorders.

Genetics

The study of heredity and the variation of inherited characteristics.

Hormonal Influences

the effects that hormones have on various aspects of behavior and physiology, affecting mood, growth, metabolism, and reproductive functions among others.

Identical Twins

Twins who have developed from a single fertilized egg and share all of their genes, known as monozygotic twins.