Root 16 = 4, 4*1/2= 2
1/3*1/2= 1/6
5/9*1/2= 5/18
Root 3 = 1.73205...*1/2= 0.866025...
Final answer: D is irrational when multiplied by 1/2 because it cannot be represented by a ratio of two integers. It is also a nonrepeating and nonterminating decimal.
Hope this helps!
