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Back to Use matrices to represent data — Problem 4 · Task Set 21

Exercises: Use Matrices to Represent Data

Work through each section in order. Show your work where indicated.

Grade 9·19 problems·~25 min·Common Core Math - HS Number and Quantity·standard·hsn-vm-c-6
Work through problems with immediate feedback
A

Fluency Practice

1.

Let A=[371205846]A = \begin{bmatrix} 3 & 7 & 1 \\ 2 & 0 & 5 \\ 8 & 4 & 6 \end{bmatrix}. What is a31a_{31}?