Natalia solved the problem 74.4 ÷ 12 = 6.2
complete the model with partial products to check natalia's work using multiplication.

part a
drag values to the boxes to complete the partial products. not all choices will be used.

0.4 1.22 46 12 20 60

the product for a =

the product for b =

the product for c =

the product for d =

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.