Identify the pattern for the following sequence. find the next three terms in the sequence.

-1, 3, -9, 27,
a.
multiply by 3; 81, 243, 729
b.
multiply by -3; -81, 243, -729
c.
multiply by -3; 81, 243, 729
d.
multiply by 3; -81, -243, -729

F(n + 1) = f(n) – 8. if f(1) = 100, what is f(6)?

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

Gabriel determined that his total cost would be represented by 2.5x + 2y – 2. his sister states that the expression should be x + x + 0.5x + y + y – 2. who is correct? explain.