The four characteristics of the abstract number system are ...

[Destiiny22]

The four characteristics of the abstract number system are identity, magnitude, a true zero, and
 
  A) reversibility.
  B) transitivity.
  C) additivity.
  D) equal intervals.

Question 2

When a dependent variable, such as number of correct responses, provides a good match with the real number system,
 
  A) all of the mathematical operations can be performed on the data.
  B) only the operations of addition and subtraction can be performed on the data.
  C) only the positive operations of addition and multiplication can be performed on the data.
  D) the variable shows a magnitude in the opposite direction of the real number system.

[tjayeee]

Answer to Question 1

Answer: D

Answer to Question 2

Answer: A

[Destiiny22]

Both answers were spot on, thank you once again

[tjayeee]

Great! Please up vote