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Matrices: Doin' the Math Quiz

Think you’ve got your head wrapped around Matrices? Put your knowledge to the test. Good luck — the Stickman is counting on you!

None of the above

None of the above
Q. Find 

None of the above
Q. Find the product:

None of the above
Q. Which of the following data sets cannot be expressed as a matrix?

I have three blue dresses, five red dresses ,and no yellow dresses.
I keep track of what time I eat lunch and dinner each weekday; I have the data for this week.
Mike and Carol each have three children of three different ages (youngest, middle child, and eldest).
This year I went on a five-day vacation to three states; last year I visited one state for a full week.
All of these can be expressed as matrices.