Spiral Review The height of a giraffe when it was born was 1.5 meters. By the giraffe's first birthday, its height had increased by 80%. The giraffe's height on its second birthday was 40% greater than a year before. What was the giraffe's height on its first birthday? What was the giraffe's height on its second birthday?

An optical inspection system is used to distinguish among different part types. the probability of a correct classification of any part is 0.92. suppose that three parts are inspected and that the classifications are independent. let the random variable x denote the number of parts that are correctly classified. determine the probability mass function of x. round your answers to four decimal places (e.g. 98.7654). x f(x) 0 1 2 3