untitled

Subtract

• -5
  -8
  3
  10
• -9
  8
  3
  2
• 5
  -8
  3
  10
• -5
  8
  3
  2

Add

• 11    8
  -4     2
• 3     2
  -6    -6
• -3    2
  -4    -6
• 10    8
  -6    2

What is the determinant of this matrix?

• 5

• -5

• 0

• -12

Are these matrices inverses of each other?

• Yes

• No

• Unable to Determine

Which option below correctly shows the steps to find the inverse of this matrix?

• 
• 
• 
• No Inverse Exists

find: B*A

• 47     30
  9     5
• 17     15
  42     35
• 10     25
  7     1
• not possible because rows do not match columns

Calculate the determinant

• 0
• -15
• -70
• 10

Find the inverse of the matrix.

• 
• 
• 
• No Inverse Exists

What must be true in order to MULTIPLY two matrices?

• They must be square.
• The dimensions must be equal.
• The determinant can't equal 0.
• The #of columns of the 1st must equal the # of rows of the 2nd.

Use a Determinant to determine the area of the given triangle.

• 25 sq. units

• 26 sq. units

• 27 sq. units

• 28 sq. units