Simplify the Expression $\frac { 63 } { 2 } \cdot \frac { 14 } { 9 } - \frac { 8 } { 9 } \cdot 27$

question 30

Multiple Choice

Simplify the expression. $\frac { 63 } { 2 } \cdot \frac { 14 } { 9 } - \frac { 8 } { 9 } \cdot 27$

• A) 18
• B) 4
• C) 28
• D) 22
• E) 25

Identify global health issues and their impact on public health.

Understand the role of lifestyle factors in promoting health and fitness.

Recognize the importance of psychological and sociological perspectives in defining adulthood and maturity.

Analyze the relationship between physical activity, fitness, and health outcomes.

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Definitions:

Resting Potential

The difference in voltage across the neuronal membrane when the neuron is not actively sending a signal, typically around -70mV.

Membrane Potential

The electrical potential difference across a cell's plasma membrane, crucial for the transmission of nerve impulses and muscle contraction.

Millivolts

A unit of electric potential equal to one thousandth of a volt, commonly used in various fields such as physics and electrophysiology to measure small voltage differences.

All-Or-None

A principle stating that the strength of a response of a nerve or muscle fiber is not dependent on the strength of the stimulus; if a stimulus is above a certain threshold, a nerve or muscle fiber will fire with full strength.