Matrices Operations
3 minutes ago
akridge
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Preview (15 questions)Show answers
  • Question 1
    120 seconds
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    Q. Add
    answer choices
    11    8
    -4     2
    3     2
    -6    -6
    -3    2
    -4    -6
    10    8
    -6    2
  • Question 2
    120 seconds
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    Q. Subtract
    answer choices
    -5
    -8
    3
    10
    -9
    8
    3
    2
    5
    -8
    3
    10
    -5
    8
    3
    2
  • Question 3
    120 seconds
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    Q. Find A-B
    answer choices
    -3     1
    7     -1
    1     0
    1     -4
    -4       0
    6     -1
    not possible because rows do not match columns
  • Question 4
    45 seconds
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    Q. What are the dimensions of this matrix?
    answer choices
    2 x 3
    3 x 2
    6 x 1
    1 x 6
  • Question 5
    30 seconds
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    Q. What comes first in the order?
    answer choices
    Row
    Column
  • Question 6
    120 seconds
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    Q. Multiply
    answer choices
    20     15    -10
    30     -5         0
    -20      15     -10
    30     -5          0
    1        8       3
    11     4        5
    20     -15     10
    -30         5        0  
  • Question 7
    120 seconds
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    Q. Multiply
    answer choices
    25
    25
    5
    -25
    25
    -5
    -10
    -10
    -6
    10
    10
    6
  • Question 8
    45 seconds
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    Q. Can the operation be performed?
    answer choices
    Yes
    No
    Sometimes
    only Mrs. Jordan knows
  • Question 9
    30 seconds
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    Q. What are the dimensions of this matrix?
    answer choices
    3x1
    1x3
    3x3
    1x1
  • Question 10
    45 seconds
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    Q. What must be true in order to ADD two matrices?
    answer choices
    They must be square.
    The dimensions must be equal.
    The determinant can't equal 0.
    The column of the 1st must equal the row of the 2nd.
  • Question 11
    120 seconds
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    Q. Find B-A
    answer choices
    -3     1
    7     -1
    1     0
    1     -4
    -4       0
    6     -1
    not possible because rows do not match columns
  • Question 12
    60 seconds
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    Q. In Matrix R (pictured) what element is in the second row, third column?
    answer choices
    8
    9.01
    6
    1
  • Question 13
    30 seconds
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    Q. How many rows are in a 7 x 3 matrix?
    answer choices
    7
    3
    21
    10
  • Question 14
    30 seconds
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    Q. How many columns are in a 5 x 4 matrix?
    answer choices
    5
    4
    20
    9
  • Question 15
    30 seconds
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    Q. Subtract
    answer choices
    3    -8
    0   -1
    3   -4
    8  -13
    -3   8
    0    1
    3   -8
    -8    1
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