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Question 1 of 5Find the order:
$$\left[ \begin{array}{ccc}4 & -1 & 8 & 12\\ 9 & 6 & -4 & -2 \\8 & 2 & 3 & 9\end{array}\right]$$
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A
3 x 4 x 2
B
4 x 3
C
3 x 4
D
3 x 4 x 3
E
4 x 3 x 3
Question 2 of 5Answer the given question:
What is a Square Matrix?
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A
Has only one row, can have any number of columns
B
Has only one column, can have any number of rows
C
Has ones (1's) as entries down the main diagonal and zeros (0's) above and below
D
Has zeros (0's) as entries down the main diagonal and ones (1's) above and below
E
Has the same number of rows as columns
Question 3 of 5Answer the given question:
$$A=\left[ \begin{array}{ccc}1 & 8 & -4\\ -1 & -6 & 2\end{array}\right]$$ What is element a2,3
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A
2
B
-6
C
-4
D
8
E
Does not exist
Question 4 of 5Answer the given question:
$$A=\left[ \begin{array}{ccc}7 & x\\ 5 & 9\end{array}\right]$$ $$B=\left[ \begin{array}{ccc}y & 2\\ 5 & w\end{array}\right]$$ Find w, x, and y, such that A = B
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A
w = 9, x = 2, y = 7
B
w = 2, x = 7, y = 9
C
w = 7, x = 5, y = 2
D
w = -9, x = -2, y = -7
E
These two matrices will never be equal
Question 5 of 5Answer the given question:
$$A=\left[ \begin{array}{ccc}10 & 21\\ w - 2 & 13 \\z + 7 & q - 4\end{array}\right]$$ $$B=\left[ \begin{array}{ccc}x & y\\ 12 & 15 \\14 & 17\end{array}\right]$$ Find q, w, x, y, and z such that A = B
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Select the Correct Answer Below: Correct! Cool Emoji Not Correct! Cool Emoji
A
q = 21, w = 14, x = 10, y = 21, z = 21
B
These two matrices will never be equal
C
q = 11, w = 15, x = -2, y = 14, z = 10
D
q = 1, w = 15, x = -12, y = 20, z = 17
E
q = -1, w = -15, x = 12, y = -20, z = -17

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