Floats and division by zero

Questions 1 to 5 of 8

1. 1. What does this program print? ``python total = 0.0 for i in range(10): total += 0.1 print(total) print(total == 1.0) ``

   1.0, then True0.9999999999999999, then True1.0000000000000002, then False0.9999999999999999, then False
2. 2. What does this program print? ``python a = float('nan') b = float('inf') print(a, b, b - b) ``

   inf inf 0.0nan inf nannan -inf nanIt raises ValueError
3. 3. What does this program print? ``python print(int(4.35 * 100), round(4.35 * 100)) ``

   435 434434 434434 435435 435
4. 4. True or false, and why? print(0.5 + 0.25 == 0.75) prints True.

   True, because 0.5, 0.25 and 0.75 are exact in binary, so the sum is exactFalse, because a float cannot store any decimal fraction exactlyFalse, because == never returns True for two float valuesTrue, because Python rounds every comparison to six digits
5. 5. True or false: in Python, print(5 / 0.0) prints inf, because a float division by zero gives infinity.

   True, because a float division by zero gives infFalse, because Python raises ZeroDivisionError for any division by zero, int or float