Select the correct description for each number set.
a) (25−−√, 9, −−−√64−−√)
b) ( -2.4, 0, 3.1, 81−−√)
c) (−23, 79, π2)
d) (12−−√, 11−−√, π)
a) The number set consists of the square root of 25, which is 5, the number 9, and the square root of 64, which is 8. Therefore, the correct description for this number set is: whole numbers.
b) The number set consists of -2.4, 0, 3.1, and the square root of 81, which is 9. Therefore, the correct description for this number set is: real numbers.
c) The number set consists of -23, 79, and π^2 (pi squared). Therefore, the correct description for this number set is: a mix of whole numbers and irrational numbers.
d) The number set consists of the square root of 12, the square root of 11, and π (pi). Therefore, the correct description for this number set is: a mix of irrational numbers and pi.