The official guide to courses by Straighterline, Study, et al: We want YOUR input!

[mysonx3]

depending on the grading rubric, some courses you can pass without submitting anything at all for the assignments/projects. in those cases, since Study.com is pass/fail, they give you credit for the class even if you didn't turn in a project

So like if you do the quizzes and the final and you get 100 on both, and the final project counts for 20% of your grade, then you're at 80 already without the final project, so they just pass you, because there's no way you could fail even with a bad project.

Now on some courses, the project(s) are 50% of your grade or something, so you can't do that. It just depends. But all of them pass you when you hit a passing grade, so if 3 projects are "required" you can often pass the course with just 2. You just need to check the rubric. For instance on the UL Study.com Civil War course, one of the papers counts for twice as much credit as the other one for some reason, iirc. So I would do that one first and then just see.

If you bomb the test and your quiz score wasn't so great, then you can forget all that.

The Operating Systems class in question has assignments worth 33% of the grade, so you can't just not submit those assignments even with a perfect score on the exam and quizzes. The same is true of every class of theirs I've seen that has assignments, including the UL Civil War course (and both assignments on that course are worth the same, though I know that part isn't true for all courses, e.g. the Holocaust course). They also didn't pass me on any of my UL courses until I had submitted all of the assignments, even though I always had more than enough points to pass after the first one. I think your information may be off here.