Which description is paired with its correct expression? 7
seven less than the quotient of two and a number squared, increased by six;
2
+6
n
O nine times the difference of a number cubed and three; 9(n°-3)
O eight more than the quotient of a number squared and four, decreased by seven;
8+
4
- 7
n?
O twice the difference of a number cubed and eight; 272-8
Hi

Kelly is a salesperson at a shoe store, where she must sell a pre-set number of pairs of shoes each month. at the end of each work day the number of pairs of shoes that she has left to sell that month is given by the equation s=300-15x , where s is the number of pair of shoes kelly still needs to sell and x is the number of days she has worked that month. what is the meaning of the number 300 in this equation

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

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