AMDM ( Matrices Test )

What is the determinant of this matrix?

• 5
• 25
• -25
• 1

Tags

CCSS.HSN.VM.C.12

Does the following have an inverse? 
⌈6  4⌉
⌊3  2⌋
*Inverse=
                 ¹∕detA × ⌈d  −b⌉                                      ⌊−c  a⌋

• Yes, 
• No. 

Tags

CCSS.HSA.REI.C.9

What is the inverse of this matrix?

• _{(1/25)  (-4/25)
  (3/25)  (13/25)}
• _{(1/5)  (-4/5)
  (3/5)  (13/5)}
• _{(6/25)  (-2/25)
  (2/25)  (9/25)}
• _{(1/150)  (-4/150)
  (3/150)  (13/150)}

Tags

CCSS.HSA.REI.C.9

What is the inverse of the following matrix?
⌈4  −3⌉
⌊12  3⌋
*det= 38

• ⌈³∕₃₈  ³∕₃₈⌉
  ⌊−⁶∕₁₉  ²∕₁₉⌋
• ⌈⁴∕₃₈  −³∕₃₈⌉
  ⌊¹²∕₃₈  ³∕₃₈⌋
• ⌈²∕₁₉  −³∕₃₈⌉
  ⌊−⁶∕₁₉  ³∕₃₈⌋
• ⌈³∕₃₈  ³∕₃₈⌉
  ⌊−¹²∕₃₈  ⁴∕₃₈⌋

Tags

CCSS.HSA.REI.C.9

Find the determinant of the matrix

• A
• B
• C
• D

Tags

CCSS.HSN.VM.C.12

Subtract

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

Tags

CCSS.HSN.VM.C.8

Add

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

Tags

CCSS.HSN.VM.C.8

What are the dimensions of this matrix?

• 2 x 3
• 3 x 2
• 6 x 1
• 1 x 6

Tags

CCSS.HSN.VM.C.6

CCSS.HSN.VM.C.8

find: B*A

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

Tags

CCSS.HSN.VM.C.8

Find A-B

• -3     1
  7     -1
• 1     0
  1     -4
• -4       0
  6     -1
• not possible because rows do not match columns

Tags

CCSS.HSA.REI.C.6

CCSS.HSA.REI.C.8