Aspecial repair to a machine will extend the life of the machine an additional four years beyond the original estimated life of 5 years. the $75,000 cost of this repair is: a. a revenue expenditure b. an ordinary repair and maintenance expenditure c. a capital expenditure. d. either (a) or (b).

One question from a survey was "how many credit cards do you currently have? " the results of the survey are provided. complete parts (a) through (g) below. click the icon to view the survey results. (a) determine the mean number of credit cards based on the raw data. the mean is 3.113.11 credit cards. (type an integer or a decimal. do not round.) (b) determine the standard deviation number of credit cards based on the raw data. the standard deviation is 1.9111.911 credit cards. (round to three decimal places as needed.) (c) determine a probability distribution for the random variable, x, the number of credit cards issued to an individual. x (# of cards) p(x) x (# of cards) p(x) 1 0.280.28 6 nothing 2 nothing 7 nothing 3 nothing 8 nothing 4 nothing 9 nothing 5 nothing 10 nothing (type integers or decimals. do not round.)

True or false: it is generally better to concentrate your exercise time on the weekends only for maximum aerobic benefit.

Which of the following best describes what production accomplishes? a. efficient use of natural resources. b. a reduction in the size of the labor force. c. an increase in supply that lowers prices. d. value added to resources that already exist.