Dimensions of Matrices

How many rows does this matrix have?

• 2

• 3

• 6

• 4

Determine the dimensions of this matrix

• 3 columns, 2 rows, dimensions 3x2

• 2 columns, 3 rows, dimensions 2x3

• 3 columns, 2 rows, dimensions 2x3

• 2 columns, 3 rows, dimensions 3x2

How many rows are in a 7 x 3 matrix?

• 7
• 3
• 21
• 10

What are the dimensions of the product of [2X3] * [3x1]?

• not possible

• [2X1]

• [3X3]

• [3x1]

What are the dimensions of the product of [2X4] * [3x4]?

• not possible
• [2x4]
• [4x3]
• [3x2]

In Matrix R (pictured) what is the value of element R_3,2

• 8
• 9.01
• 6
• 1

How many columns are in a 5 x 4 matrix?

• 5
• 4
• 20
• 9

In Matrix R (pictured) what element is in the second row, third column?

• 8
• 9.01
• 6
• 1

What comes first in the order?

• Row
• Column

What are the dimensions of this matrix?

• 2 x 3
• 3 x 2
• 6 x 1
• 1 x 6