Atriangle's area is given by the expression 3x2 – x + 12. the height is 6x. the base of the triangle is the quotient of the area and of the height. which expression represents the base of the triangle? x – + 4x + 4x x –

The accompanying data represent the miles per gallon of a random sample of cars with a three-cylinder, 1.0 liter engine. (a) compute the z-score corresponding to the individual who obtained 42.342.3 miles per gallon. interpret this result.