Answer:
of a unit
Step-by-step explanation:
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Coefficients are added together because they are like terms, this can be proven with the distributive property. For example, x(2x+x)=2x^2+x^2=3x^2.
The commutative property of addition and the associative property demonstrate this.
The word "commutative" comes from "commute" or "move around", so the Commutative Property<span> is the one that refers to moving values around.
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The associative property<span> states that you can add or multiply regardless of how the numbers are grouped. </span>
Answer:
The only one that would be reasonable is the first one...and maybe the third one too
Step-by-step explanation:
3.

4. Cross- multiply
8.

9.

10.

11. Line Segment Additive Property
Distance of 10 blocks
Displacement of 2 blocks north