The telephone company offers two billing plans for local calls. Plan 1 charges $37 per month for unlimited calls and Plan 2 charges $14 per month plus $0.05 per call
a. Use an inequality to find the number of monthly calls for which Plan 1 is more economical than Plan 2.
b. Explain the meaning of the answer to part a

What is 1/2 x (6 x 4)+3 + 2 show your work

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

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base