2 Barbie is thinking of a number. Twenty less than one third of the
number is 72. Find Barble's number.

Find the value of the cosine for angle a

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

You deposit $5000 each year into an account earning 3% interest compounded annually. how much will you have in the account in 30 years?