Pre College Algebra

Find the determinant of the following matrix.

• 8

• -8

• 18

• -18

Determine if the matrix has an inverse, if so find it.

• No

•  0   1
  -1   2

• -1   3
    1   -2

•   2   -1
  -1   1

• 10

• 0

• 1

• 4

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

• 
• 
• 
• No Inverse Exists

Calculate the determinant

• 0

• -15

• -70

• 10

Find the inverse of the matrix.

• 
• 
• 
• No Inverse Exists

What is A^-1?

• 
• 
• 
• 

Multiply.

• A

• B

• C

• D

find: B*A

• 47     30
  9     5

• 17     15
  42     35

• 10     25
  7     1

• not possible because rows do not match columns

Find the product of the matrices.

• A

• B

• C

• D