. Ms. Latona can grade 30 assignments in 45 minutes. Mr. Wilburn can grade 45 assignments in 60 minutes. Who grades assignments
1 answer:
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9514 1404 393
Answer:
Step-by-step explanation:
The element at row i column j in the product is the dot-product of row i of the first matrix and column j of the second matrix. For example, row 2 column 1 of the product is ...
(row 2) · (column 1)
[3, -2, 4] · [2, 7, 1] = (3)(2) +(-2)(7) +(4)(1) = 6 -14 +4 = -4
The attachment shows the complete product matrix. It is convenient to let a spreadsheet or graphing calculator do the tedious repetitive arithmetic.
