Solve the System of Nonlinear Equations by the Addition Method $$\begin{array} { l } x ^ { 2 } + y ^ { 2 } = 20 \\3 y ^ { 2 } - x = 50\end{array}$$

question 7

Multiple Choice

Solve the system of nonlinear equations by the addition method. $$\begin{array} { l } x ^ { 2 } + y ^ { 2 } = 20 \\3 y ^ { 2 } - x = 50\end{array}$$

• A) \(\left\{ ( - 2 , - 4 ) , ( - 2,4 ) , \left( \frac { 5 } { 3 } , - \frac { \sqrt { 155 } } { 3 } \right) , \left( \frac { 5 } { 3 } , \frac { \sqrt { 155 } } { 3 } \right) \right\}\)
• B) \(\left\{ ( \sqrt { 20 } , 0 ) , \left( 0 , - \sqrt { \frac { 50 } { 3 } } \right) \right\}\)
• C) \(\{ ( 0 , \sqrt { 20 } ) , ( - 2,4 ) \}\)
• D) { }

---

Definitions:

Control Process

A systematic effort to set performance standards, measure performance, and take corrective action as needed.

Balanced Scorecard

A strategic planning and management system used to align business activities to the vision and strategy of the organization, improve internal and external communications, and monitor organization performance against strategic goals.

Innovation and Learning

The process of implementing new ideas, creating dynamic products, or improving existing services to meet market demands and learning from the process.

Customer Satisfaction

A measure of how products or services provided by a company meet or surpass the customer's expectations.