Question Help In a volcano erupting lava flows continuously through a tube system about 11 kilometers to the sea. Assume a lava flow speed of 0.5 kilometer per hour and
calculate how long it takes to reach the sea.

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

Convert the mixed numbers into improper fractions. convert the improper fraction to mixed numbers.

Using only the digits 5, 6, 7, 8, how many different three digit numbers can be formed if no digit is repeated in a number?