Jeanette took two tests. find her z-score for each test. (remember: the number of standard deviations between a score and the mean score is indicated by a z-score.) on which did she score better compared with others in her class?

The area of a rectangle is 10 cm^2. one side of the rectangle is x cm. express the perimeter of the rectangle in terms of x and show that this rectangle cannot have a perimeter of 12 cm. the perimeter of the rectangle in terms of x is __ cm