Basic Operations with Matrices

In Matrix R (pictured) what element is r₂₃ ?

• 8

• 9.01

• 6

• 1

Find the determinant of the matrix

• A

• B

• C

• D

Calculate the determinant

• 0

• none

• -32

• -8

Calculate the determinant

• 0

• -15

• -70

• 10

Evaluate the determinant of the matrix.

• 695

• 284

• 392

• -179

find: B*A

• 47     30
  9     5

• 17     15
  42     35

• 10     25
  7     1

• not possible because rows do not match columns

• 
• 
• 
• 

What are the dimensions of this matrix?

• 4x3

• 3x4

• 3

• 4

• A

• B

• C

• D

Perform the indicated operation.  If it’s not possible, select Not Possible. 

• 7
  -7
  -6
  20

• 7 
  -9
  -6
  20

• Not Possible

• 7
  -9
  2
  20