You can complete three-tenths of a task in an hour. your friend can complete one-fifth of the same task in an hour. how long will it take to complete the task if you work together?

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

Solve the following inequalities and show the solution on a number line. 2x+3< 3(4x+5)

Helena lost her marbles. but then she found them and put them in 44 bags with mm marbles in each bag. she had 33 marbles left over that didn't fit in the bags.