A metalworker has a metal alloy that is 30​% copper and another alloy that is ​60% copper. How many kilograms of each alloy should the metalworker combine to create 60kg of a ​48% copper​ alloy?

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

Cuántos triángulos forman un diamante

The length of a rectangle (x+5) inches long, and the width is 3 2/5 inches. if the area is 51 square inches, write and solve an equation to find the length of the rectangle.