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find the geometric mean of 275 and 11

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.

What properties allow transformation to be used as a problem solving tool

Find the solution set of this inequality. enter your answer in interval notation using grouping symbols. |8x-4| ≤ 12