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3 years ago

Which of the following best represents a compound?

Mathematics

1 answer:

Ronch [10]3 years ago

7 0

Answer:

The answer to your question is: Salt

Step-by-step explanation:

Element: is a substance that cannot be converted into another substance.

Compound: is a substance that is formed by 2 or more elements.

Mixture: is a substance composed by 2 or more compounds.

Iron it is an element

Salt it is a compound

River sediment it is a mixture

Ocean water it is a mixture

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eduard

Answer:

$\:c_{11}=-2,\:\:\:c_{12}=-2$

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Step-by-step explanation:

Given the matrices

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$\begin{pmatrix}1&-1\\ \:\:2&1\end{pmatrix}\times \:\begin{pmatrix}1&2\\ \:\:3&4\end{pmatrix}=\begin{pmatrix}c_{11}&c_{12}\\ \:\:\:c_{21}&c_{22}\end{pmatrix}$

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$\:c_{11}=-2,\:\:\:c_{12}=-2$

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