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Multiply matrices

Question 1 of 8

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The matrix \(N\) gives the number of items from two categories sold on each of two days. The matrix \(P\) gives two values per item for those categories; its row order matches the category order in \(N\)

N = \begin{bmatrix} 7 & 2 \\ 9 & 1 \end{bmatrix}

P = \begin{bmatrix} 4 & 7 \\ 4 & 1 \end{bmatrix}