Choose the property of addition that justifies the equation.

Mathematics

1 answer:

maks197457 [2]2 years ago

5 0

Answer:

1. Associative Property

2. Commutative Property

3. Identity Property

Step-by-step explanation:

1. 2 + (b + 6) = (2 + b) + 6

Associative Property

2. (4 + x) + 6 = 6 + (4 + x)

Commutative Property

3. 0 + a = a

Identity Property

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Answer:

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Step-by-step explanation:

Given that:

Mean score = 68

Standard deviation = 14

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Mean score + constant added score

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