Classify ?ABC using its angles.
(a) obtuse
(b) acute
(c) equiangular
(d) b and c
(d) b and c
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For the number listed, find its opposite.-2.1
A. 
B. -2.1
C. 
D. 2.1
Simplify. Assume that all variables represent any real number.
A. -7x
B. -7
C. 7
D. 7x
Use Bayes' rule to find the indicated probability.Two shipments of components were received by a factory and stored in two separate bins. Shipment I has 2% of its contents defective, while shipment II has 5% of its contents defective. If it is equally likely an employee will go to either bin and select a component randomly, what is the probability that a defective component came from shipment II?
A. 0.714 B. 0.222 C. 0.5 D. 0.2
Provide an appropriate response.The following data are the number of social network friends for nine random users.74?91?122?60?109?215?84?112?43(a) Find the mean, median, and mode for the data. Round the value of the mean to the nearest whole number, if necessary.(b) A new user opens a social network account starting with 15 friends. Add this data to the data set and find the new mean, median, and mode for the data. Round the value of the mean to the nearest whole number, if necessary.
A. (a) mean: 101, median: 91, mode: no mode; (b) mean: 101, median: 112, mode: no mode B. (a) mean: 101, median: 91, mode: no mode; (b) mean: 93, median: 101.5, mode: no mode C. (a) mean: 93, median: 112, mode: 112; (b) mean: 84, median: 101.5, mode: 112 D. (a) mean: 93, median: 112, mode: 112; (b) mean: 91, median: 112, mode: 112