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Solve the System of Equations by Elimination for Real Values {x2+y2=25x2y2=7\left\{ \begin{array} { l } x ^ { 2 } + y ^ { 2 } = 25 \\x ^ { 2 } - y ^ { 2 } = 7\end{array} \right.

question 52

Essay

Solve the system of equations by elimination for real values of x and y . {x2+y2=25x2y2=7\left\{ \begin{array} { l } x ^ { 2 } + y ^ { 2 } = 25 \\x ^ { 2 } - y ^ { 2 } = 7\end{array} \right.


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The price of goods or services within a country's borders, as opposed to international or import/export prices.

World Price

The international market price of a good or service, influenced by global supply and demand.

Import

Bringing in merchandise or services from overseas with the intent to sell them within a country.

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The cost of forgoing the next best alternative when making a decision, representing the benefits one misses out on by choosing one option over another.

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