If a system of linear equations ax=b has no solution, how can you tell by looking at the rows of [c, d]=rref[a, b] that this is in fact the case?

alcohol flush reaction is a condition in which a person develops flushes or blotches associated with erythema on the face, neck, shoulders, and in some cases, the entire body after consuming alcoholic beverages. this syndrome has been associated with an increased risk of esophageal cancer in those who drink.

explanation:

something will pop up that says “know the answer? answer now! ” and you click on it and write your answer. after you are done, submit it.