Premise: "A snowboarder is catching air on a snowy hill while wearing protective snow gear."\nHypothesis: "A female snowboarder is doing flips on a snowy hill."\nDo we know that the hypothesis entailed by the premise?
Let's be accurate as possible and think first.
it is not possible to tell
A snowboarder is catching air on a snowy hill while wearing protective snow gear does not indicate that a female snowboarder is doing flips on a snowy hill.

.

So, the answer is it is not possible to tell