Help as soon as possible What error did Stefan make in his conclusion?
A. Stefan didn’t use only rigid transformations so the figures aren’t congruent
B. It is possible to map ABD to ABC using a sequence of rigid transformations but the figures aren’t congruent
C. There is no error. This is a correct conclusion

An automated water dispenser fills packets with one liter of water on average, with a standard deviation of 5 milliliter. the manual says that after a year of operation the dispenser should be tested to see if it needs recalibration. a year later a number of filled packets are set aside and measured separately. it is found that the average packet now contains about 0.995 liters. does the dispenser need calibration? explain your answer.

An equation where variables are used to represent known values—function notation true or false

Which of the following is most likely the next step in the series? a3z, b6y, c9x, d12w, е15v, f18u