Which are the solutions of the quadratic equation?
x2 = 9x + 6
-9 -
105
-9 +
105
© - 9 - v105 -9 + v105
-9–157 -9 + 157
9-x105 9 + y 105
9-157 9 + 157
-
10
+
105
9-
57
9 +
57

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

Over the last 8 nights, elyse earned the following in tips: {105, 120, 84, 95, 100, 132, 140}. if she earns $140 a night for the next four nights, which measure of center would increase more, the mean or median?

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