The carbon−14 decay rate of a sample obtained from a young tree is 0.350 disintegration per second per gram of the sample. Another wood sample prepared from an object recovered at an archaeological excavation gives a decay rate of 0.182 disintegration per second per gram of the sample. What is the age of the object? Hint: The rate constant for carbon−14 decomposition is 1.21 × 10−4 yr−1. Report your answer to 3 significant figures.

2-digit numbers less than 91 which are 1 less than a multiple of 10

The accompanying table shows the numbers of male and female students in a particular country who received bachelor's degrees in business in a recent year. complete parts (a) and (b) below. business degrees nonbusiness degrees total male 189131 634650 823781 female 169539 885329 1054868 total 358670 1519979 1878649 (a) find the probability that a randomly selected student is male, given that the student received a business degree. the probability that a randomly selected student is male, given that the student received a business degree, is nothing. (round to three decimal places as needed.) (b) find the probability that a randomly selected student received a business degree, given that the student is female. the probability that a randomly selected student received a business degree, given that the student is female, is nothing. (round to three decimal places as needed.)

Select the sequences that are geometric.