Transcript question

hello all, If i took an online class over the summer but simply never finished it by the time apps were due and I applied to universities without using that class on my transcript since it was outside my high school, What would happen? Would I still be able to apply to universities as I only took the class to get into another one in my actual high school but I never too the final since I had already gotten into the class I wanted to get into

I am american btw