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6. 1 is a/an..

  • natural number, psoitive integer, integer, and real number
  • natural number
  • real number
  • natural number, real number, integer

7. irrational numbers belong to the set of..

  • real numbers
  • natural numbers
  • integers
  • positive integers

8. 2/3 is a/an..

  • real number, natural number
  • rational number, and real number
  • integer
  • positive integer

9. 124.5547 in standard form

  • 1 * 10^-2
  • 1.245547 * 10^2
  • 1.245547 * 10^-2
  • 1 * 10^2

10. positve integers belong to the set of..

  • rational numbers
  • natural numbers
  • integers
  • real numbers

11. 0.0049615 to 1 significant figure is

  • 0.05
  • 0.4962
  • 0.005
  • 0.5