Arock is thrown from the top of a building which measures 48 foot high. the graph shows the height, y, of the rock from the ground after x seconds. on which interval is the rock's height always increasing?

a)
x > 0

b)
0 < x < 2.5

c)
0 < x < 5.5

d)
2.5 < x < 5.5

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

Which property was used to simplify the expression? 3c+9 +4c=3c+4c+9

Use a standard normal table to determine the probability. give your answer as a decimal to four decimal places. −1.5< < 1.5)