Which numbers are rational? Check the three that apply.(3 points)

Responses

36−−√
square root of 36

1123
11 over 23

72−−√
square root of 72

2.7
2 point 7

14−−√
square root of 14

π

1 answer

To determine which numbers are rational, we need to identify numbers that can be expressed as a fraction of two integers.

  1. √36 (square root of 36): This is 6, which is a rational number.
  2. 11/23: This is a fraction of two integers, which means it is a rational number.
  3. √72 (square root of 72): This is approximately 8.485, which is an irrational number since it cannot be expressed as a fraction of two integers.
  4. 2.7: This can be expressed as 27/10 (a fraction), so it is a rational number.
  5. √14 (square root of 14): This is approximately 3.742, which is an irrational number.
  6. π: This is a well-known irrational number.

The rational numbers from the options are:

  • √36 (which equals 6)
  • 11/23
  • 2.7

So the three that apply are:

  1. √36
  2. 11/23
  3. 2.7