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ivanzaharov [21]
3 years ago
5

Summarize the Venn diagram.

Physics
1 answer:
Elena L [17]3 years ago
5 0

Answer:

If this is a multiple choice question, then the answer is D.

Explanation:

Compounds are composed of atoms, which are composed of subatomic particles and consist of matter. Since they are composed of atoms rather than vice-versa, compounds cannot be found inside atoms and are not the most basic form of matter (ruling out A and C). A pure substance contains atoms, which are each composed of subatomic particles. Therefore, a pure substance must have atoms if it contains subatomic particles (ruling out B). The only answer left is D.

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What two methods are the best choices to factor this expression 18x2-8
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Answer:

Please check the explanation

Explanation:

The best two methods will be:

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  • Factor out the GCF

Factor by grouping

Factor by grouping deals with establishing a smaller groups from each term.

18x^2=\:\left(2\cdot 3\cdot 3\cdot x^2\right)

8\:=\:\:2\cdot 2\cdot 2

Therefore, the expression becomes

18x^2=\:\left(2\cdot 3\cdot 3\cdot x^2\right)-\left(2\cdot \:2\cdot \:2\right)

Now factor out the greatest common factor (GCF) which is 2

         =\:2\left(3\cdot \:\:3x^2-\left(2\right)\left(2\right)\right)

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Factor out the GCF

Given the expression

18x^2-8\:\:\:

factor out common term 2

=2\left(9x^2-4\right)

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