A staircase is 12 feet long and its vertical rise is 10 feet from the floor. Find the angle of elevation that the staircase forms with the floor. (round to the nearest tenth of a degree

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

What is the equation of a line passing through (-6,5) and having a slope of 1/3

Use pascal's triangle to find the missing values. x4 - 4xb + 6x2 - ax + 1