Solve the System of Equations Using Substitution $$\left\{ \begin{array} { l } x ^ { 2 } + y ^ { 2 } = 169 \\x + y = 17\end{array} \right.$$

question 111

Multiple Choice

Solve the system of equations using substitution.
- $$\left\{ \begin{array} { l } x ^ { 2 } + y ^ { 2 } = 169 \\x + y = 17\end{array} \right.$$

• A) \(x = 12 , y = - 5 ; x = 5 , y = - 12\)
• B) \(x = - 12 , y = 5 ; x = - 5 , y = 12\)
• C) \(x = 12 , y = 5 ; x = 5 , y = 12\)
• D) \(x = - 12 , y = - 5 ; x = - 5 , y = - 12\)

---

Definitions:

Informed Consent

A legal and ethical requirement in healthcare where patients are provided with detailed information about a medical procedure or treatment before agreeing to it.

Research Team

A group of individuals with different areas of expertise working together on scientific or academic studies to achieve research objectives.

Meta-Analysis

A statistical analysis that combines the results of multiple scientific studies to arrive at a comprehensive conclusion.

Systematic Review

A comprehensive summary of research literature, using explicit, rigorous methods to identify, assess, and synthesize studies on a specific topic.