Several athletes were asked what kind of shoes they prefer to wear. how many athletes prefer not to wear tennis shoes?
a) 6
b) 7
c) 9
d) 15
i said d. am i correct?

Complete the table for different values of x in the polynomial expression -7x2 + 32x + 240. then, determine the optimal price that the taco truck should sell its tacos for. assume whole dollar amounts for the tacos.

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

X+ y = 5 ; x - y =3 solve using linear combination