D is an irrational number because it equals 0.577350269
Answer:
D
Step-by-step explanation:
the square root of 9/27 will equal to square root of 3 over 3.
A will simplify to 2/3.
B will simplify to 1/3.
C will simplify to 3/4.
As long as the number has a square root somewhere in the final answer, it will be irrational.