Which is an arithmetic sequence?

a) 9,12,16,20
b)9,11,13,16
c)1,5,9,13,17
d)1/2,1/4,1/6,1/8

Xto the second power plus 14x plus 48. what are the factors? we are doing factoring trinomials with a=1

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

Find the area of the regular hexagon if a side is 20 cm.