Perform the indicated operation.

[ 1 2 ] [ 2 0 ]

| 2 3 | | 1 1 |

[ 0 4 ]

Perform the indicated operation.

[ 5 2 ] + [ 1 0 ]

[ 1 -1 ] [ 4 4 ]

Solve using augmented matrix methods.

x + 3y = 1

3x - 2y = 14

Solve using inverse matrix.

2x + 4y = -2

x - 5y = 6

When you graph the solution, which of the following best describes the location of the solution region?

Line A: 2x + y ? 10

Line B: x + 2y ? 8

x ? 0

y ? 0

If $2,000 is invested at 7% compounded monthly, what is the amount after 9 months?

7. Solve the system of linear equations using substitution or elimination method.

2x + 3y = 1

3x - y = 7

How long will it take $5,000 to grow to $7,000 if it is invested at 5% compounded continuously?

Perform the indicated operation. [ 1 2 ] [ 2 0 ] | 2 3 | | 1 1 | [ 0 4 ] 1. Perform the indicated operation. [ 5 2 ] + [ 1 0 ] [ 1 1 ] [ 4 4 ] 2. 3. Solve using augmented matrix methods. x + 3y = 1 3x 2y = 14 4. Solve using inverse matrix. 2x + 4y = 2 x 5y = 6 5. When you graph the solution, which of the following best describes the location of the solution region? Line A: 2x + y 10 Line B: x + 2y 8 x 0 y 0 6. If $2,000 is invested at 7% compounded monthly, what is the amount after 9 months? 7. Solve the system of linear equations using substitution or elimination method. 2x + 3y = 1 3x y = 7 8. How long will it take $5,000 to grow to $7,000 if it is invested at 5% compounded continuously