There are 40 nickels in a roll. If you have 150 rolls of nickels, how many nickels do you have?

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 condition that the zeros of the polynomial f(x) = x^3+3px^2+3px+r may be in a. p.

Which of the following parabolas opens up?