The sizes of two matrices are given. Find the size of the product AB and the size of the product BA, if the given product can be calculated. A is 1 x 4; B is 4x1. O A. AB is 1 x 1; BA is 4x4. B. AB is 4x4; BA is 1x1. C. AB is 1 x 1; BA cannot be calculated. D. AB cannot be calculated; BA is 4 x 4.

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What is the radius of a circle with an area of 78.5 cubic inches? use 3.14 for pie

The birth weights of newborn babies in the unites states follow in a normal distrubution with a mean of 3.4 kg and standard deviation of 0.6 kg. reaserches interested in studying how. children gain weights decide to take random samples of 100 newborn babies and calculate the sample mean birth weights for each sample