If Qo is the quantity of radioactive carbon-14 in an organism at the time of death, the quantity, Q. remaining t years later is given by Q = Qoe^-0.0001211

(a) A skull uncovered at an archeological dig has 16% of the original amount of carbon-14 present. Estimate its age.
Round your answer to the nearest integer.

(b) Calculate the half-life of the carbon-14. Round your answer to the nearest interger.

You are a clerk at convenience store. a customer owes 11.69 for a bag of potatoes chips. she gives you a five dollar bill. how much change should the customer receive?

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

How many grams the dog will eat in 3 days?