Which numbers are rational? Check the three that apply.(3 points)Responsesπpi2.72 point 7112311 over 2314−−√square root of 1472−−√square root of 7236−−√

1 answer

To determine which numbers are rational, we need to identify whether each number can be expressed as a fraction of two integers (a/b, where a and b are integers and b ≠ 0).

  1. π (pi): This is an irrational number; it cannot be expressed as a fraction of two integers. Not rational.

  2. 2.7: This can be expressed as 2710, so it is a rational number. Rational.

  3. 2.7112311: This is a decimal that terminates, so it can also be expressed as a fraction. Therefore, it is rational. Rational.

  4. 1123: This is already in the form of a fraction, with both numbers being integers. Rational.

  5. 14: This is an irrational number because 14 is not a perfect square. Not rational.

  6. 7: This is also irrational because 7 is not a perfect square. Not rational.

  7. 36: This is an integer and can be expressed as 361. Rational.

In summary, the rational numbers in the list are:

  • 2.7
  • 2.7112311
  • 1123
  • 36

So, the three that apply as rational numbers are:

  1. 2.7
  2. 2.7112311
  3. 1123