Final answer:
The result of the expression (float) (4 / 5) is 0.0.
Step-by-step explanation:
The result of the expression (float) (4 / 5) is 0.0. This is because the division operation is performed using integer division, which truncates the decimal part of the result. In this case, 4 divided by 5 is 0 with a remainder of 4. When we convert this result to a float using the float operator, it remains 0.0 because it is already a whole number.