The lengths of a certain species of fish are approximately normally distributed with a given mean mc019-1.jpg and standard deviation mc019-2.jpg. according to the empirical rule, what percentage of the fish will have lengths within 1 standard deviation of the mean?

20.ju inces. which ordered pair is a viable solution if x represents the number of books he orders and y represents the total weight of the books, in ounces? (-3,-18) (-0.5, -3) (0,0) (0.5, 3)

Sophia wrote an equation to represent the revenue of a movie theater for one day. she let x represent the number of child tickets sold and y represents the nunver of adult tickets sold. if a child ticket cost $4, an adult ticket cost $6, and the total revenue for the daybwas $420, which equation could sophia use to represent the number of chikd and adult tickets that were sold?

Let x = a + bi and y = c + di and z = f + gi. which statements are true?