Find All Real Solutions to the System of Equations Using $\begin{array} { l } x y - x ^ { 2 } = - 20 \\x - 2 y = 3\end{array}$

question 43

Multiple Choice

Find all real solutions to the system of equations using the substitution method.
- $\begin{array} { l } x y - x ^ { 2 } = - 20 \\x - 2 y = 3\end{array}$

• A) \(( - 5 , - 1 ) , \left( 8 , \frac { 11 } { 2 } \right)\)
• B) \(( - 5 , - 1 ) , \left( \frac { 11 } { 2 } , 8 \right)\)
• C) \(( 5,1 ) , \left( - 8 , - \frac { 11 } { 2 } \right)\)
• D) \(( 5,1 ) , \left( - \frac { 11 } { 2 } , - 8 \right)\)

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Definitions:

Square Weld

A type of weld joint made at a right angle between two parts, ensuring strong structural integrity.

Root Opening

The gap between the parts being welded at their closest edge at the start of the welding process.

Welding Symbol

A standardized set of symbols used in welding blueprints and plans to specify the type of weld, its size, and other related instructions.

Bevel Weld

A type of weld designed to join two pieces of metal at an angle, using a beveled edge to prepare the joint.