Exercise18

In each situation, which number set do you think is most appropriate?

  1. The number of dogs a student has owned throughout their lifetime.

    This number is best considered as a

    • natural number

    • whole number

    • integer

    • rational number

    • irrational number

    • real number

    .

  2. The difference between the projected annual expenditures and the actual annual expenditures for a given company.

    This number is best considered as a

    • natural number

    • whole number

    • integer

    • rational number

    • irrational number

    • real number

    .

  3. The length around swimming pool in the shape of a half circle with radius \(10\,\text{ft}\text{.}\)

    This number is best considered as a

    • natural number

    • whole number

    • integer

    • rational number

    • irrational number

    • real number

    .

  4. The proportion of students at a college who own a car.

    This number is best considered as a

    • natural number

    • whole number

    • integer

    • rational number

    • irrational number

    • real number

    .

  5. The width of a sheet of paper, in inches.

    This number is best considered as a

    • natural number

    • whole number

    • integer

    • rational number

    • irrational number

    • real number

    .

  6. The number of people eating in a non-empty restaurant.

    This number is best considered as a

    • natural number

    • whole number

    • integer

    • rational number

    • irrational number

    • real number

    .

in-context