A radioactive substance has a half life of 8 years and 200 g are present initially. How many years will it be until only 10% of the original amount remains? Please round to the nearest
tenth.

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

If the discriminant if a quadratic equation is 4 which statement describes the roots?

What is the circumference of a circle with an area of 50.24 cm²?