Verify That the Values of the Variables Listed Are Solutions $$\left\{ \begin{array} { c } x + y + z = - 1 \\x - y + 3 z = - 13 \\4 x + y + z = 8 \\\end{array} \right.$$

question 83

Multiple Choice

Verify that the values of the variables listed are solutions of the system of equations.
- $$\left\{ \begin{array} { c } x + y + z = - 1 \\x - y + 3 z = - 13 \\4 x + y + z = 8 \\\end{array} \right.$$

x = 3 , y = 1 , z = - 5

• A) not a solution
• B) solution

Recognize the importance of environmental factors and community infrastructure in disease prevention.

Understand the historical development of public health initiatives and their impact on community health.

Analyze the role of government and non-governmental organizations in the advancement of public health.

Identify key figures and their contributions to public health and nursing.

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Definitions:

Monopoly Position

A situation in which a single company or entity has exclusive control over a particular market or industry, eliminating competition.

Lower Prices

A decrease in the general level of prices of goods and services, making them more affordable to consumers.

Additional Units

Incremental amounts or quantities of a good or service produced or consumed, often considered in economic analysis to assess changes in supply, demand, or efficiency.

Demand Curve

A graphical representation showing the relationship between the price of a good or service and the quantity demanded by consumers, typically downward sloping from left to right.