Solve the System $\left(\begin{array}{rlll}2 x&+&5 y&-&3 z & =&-13 \\5 x&-&2 y&+&4 z & =&34 \\&&4 y&+&z & =&-10\end{array}\right)$

question 91

Multiple Choice

Solve the system. $\left(\begin{array}{rlll}2 x&+&5 y&-&3 z & =&-13 \\5 x&-&2 y&+&4 z & =&34 \\&&4 y&+&z & =&-10\end{array}\right)$

• A) x = 0, y = -5, z = 1
• B) x = 4, y = -3, z = 2
• C) x = 3, y = -6, z = 4
• D) x = 0, y = -4, z = 4

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Definitions:

Monopoly

A commercial environment in which a sole vendor markets a one-of-a-kind product.

Perfect Competition

A market structure characterized by an infinite number of small firms, homogeneous products, perfect information, and no barriers to entry or exit.

Rare Cocoa Bean

A type of cocoa bean that is uncommon or hard to find, often used in making high-quality or specialty chocolates.

Monopoly

A market structure characterized by a single seller selling a unique product with no close substitutes, leading to high control over prices.