Line p is shown in the xy plane. line q (not shown) is perpendicular to line p and passes through. which of the following points lies on line q? The answer is B but can someone please explain why

Why do you need to classify the size of a particle

What does it mean when the bisecyer of the photosynthesis of the root of 27 equals 3

On a test the graders have a mean of 77 and a standard deviation of 8. if we can approximate the distribution of these graders by a number distribution what percent of the students. a) scores higher than 77? b) should pass the test (grades > 60)? c) should fail the test (grades < 60)?