Use Cramerʹs Rule to Solve the System of Equations $$\begin{array} { l } - 7 x + 92 = 9 y \\- 2 x - 6 y = - 40\end{array}$$

question 424

Multiple Choice

Use Cramerʹs rule to solve the system of equations. If D = 0, use another method to determine the solution set.
- $$\begin{array} { l } - 7 x + 92 = 9 y \\- 2 x - 6 y = - 40\end{array}$$

• A) \(\{ ( 7,5 ) \}\)
• B) Cramer's rule does not apply since \(D = 0 ; \varnothing\)
• C) \(\{ ( 8,5 ) \}\)
• D) \(\{ ( 8,4 ) \}\)

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Definitions:

Immune System Components

The cells and molecules, including antibodies, white blood cells, and the complement system, that work together to protect the body from infection and disease.

Adaptive Immune Response

The body's immune system's ability to recognize and specifically react to pathogens through the activation of lymphocytes, providing long-lasting protection.

Active Immunity

Immunity that develops as a result of exposure to antigens; it can occur naturally after recovery from a disease or can be artificially induced by immunization with a vaccine. Compare with passive immunity.

Passive Immunity

Temporary immunity that depends on the presence of immunoglobulins produced by another organism. Compare with active immunity.