Find X and Y $\left[ \begin{array} { c c } - 6 & x \\y & 7\end{array} \right] = \left[ \begin{array} { c c } - 6 & - 4 \\- 9 & 7\end{array} \right]$

question 45

Multiple Choice

Find x and y. $\left[ \begin{array} { c c } - 6 & x \\y & 7\end{array} \right] = \left[ \begin{array} { c c } - 6 & - 4 \\- 9 & 7\end{array} \right]$

• A)x = 4, y = 9
• B)x = -6, y = 7
• C)x = -9, y = -4
• D)x = -4, y = -9
• E)x = -4, y = -4

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Definitions:

Saponification

The chemical reaction between a fat or oil and a base, resulting in the formation of glycerol and soap, usually sodium or potassium salts of fatty acids.

Sodium Hydroxide

A strong base and alkali used in various industries, known chemically as NaOH.

Animal Fat

A type of fat derived from animals, used in cooking and in the production of a variety of consumer goods.

Bases

Substances that can accept protons or donate a pair of valence electrons to form a bond and are characterized by a high pH, often above 7 when dissolved in water.