Review BMA1:Matrices& Solve Equation

Review (BMA1):
Matrices& Solve Equation

By Monisha Lordson Millar

Multiple Choice

Add

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

Multiple Choice

Multiply

• 25
  25
  5
• -25
  25
  -5
• -10
  -10
  -6
• 10
  10
  6

Multiple Choice

What must be true in order to ADD two matrices?

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

Multiple Choice

Find A−B

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

Multiple Choice

Can the operation be performed?

• Yes

• No

• Sometimes

• only your teacher knows

Multiple Choice

Simplify.

Multiple Choice

Solve:
2(4x-3) - 8 = 4 + 2x

• x = 5/3
• x = 3
• x = 1
• x = 2

Multiple Choice

Solve the equation: 5g - 8 = 27

• 7

• 3g

• 10

• -4

Multiple Choice

Solve the equation: 2f + 6 = 18

• 6

• 12

• 3

• 9

Multiple Choice

Solve the formula for r.   What is the 1st step?

• Divide each side by t. 
• Subtract t from each side. 
• Add t to each side. 
• Multiply each side by t. 

Multiple Choice

Solve for w:
A = LW

• A = ^L/_W
• w = ^L/_A
• w = A
• w = ^A/_L

Multiple Choice

Solve m - n = 5 for m.

• m = 5 + n
• m = -5 - n
• m = -5 + n
• m = 5 - n