70-Algebra-2-Quest-ons

QUESTION 1

  1. Which of the following is the correct matrix representation of the children movie ticket sales for all three days?

    Ticket Sales for Thursday
    Children Adults
    Ticket Sales for Friday
    Children Adults
    Ticket Sales for Saturday
    Children Adults
    Regular 257 183 355 402 398 423
    Matinee 135 168 242 311 376 386


2 points

QUESTION 2

  1. What is the correct matrix for the inventory of flats in sizes 10 and 12.

    Boots
    Blue Gray
    Flats
    Blue Gray
    Sneakers
    Blue Gray
    Shoes Size 10 3 5 9 10 1 4
    Shoes Size 12 2 0 2 7 4 0


2 points

QUESTION 3

  1. Evaluate 542675.GIF

2 points

QUESTION 4

  1. If B = Imported Asset
    find -3B.

2 points

QUESTION 5

  1. Evaluate 147174.GIF

2 points

QUESTION 6

  1. Matrix A has dimensions 5 x 4. Matrix B has dimensions 4 x 3. These two matrices can be multiplied.

2 points

QUESTION 7

  1. Matrix A has dimensions 3 x 2. Matrix B has dimensions 3 x 2. A x B will have dimensions 3 x 2.

2 points

QUESTION 8

  1. Evaluate 145191.GIF

2 points

QUESTION 9

  1. Evaluate 147110.GIF

2 points

QUESTION 10

  1. Evaluate 144959.GIF

2 points

QUESTION 11

  1. Evaluate 542563.GIF

2 points

QUESTION 12

  1. Does the matrix 542567.GIF have an inverse?

2 points

QUESTION 13

  1. Does the matrix 145376.GIF have an inverse?

2 points

QUESTION 14

  1. Find the determinant of 147096.GIF

2 points

QUESTION 15

  1. Find the determinant of 145280.GIF

2 points

QUESTION 16

  1. The following system of equations is consistent.Imported Asset

2 points

QUESTION 17

  1. The following system of equations is inconsistent.Imported Asset

2 points

QUESTION 18

  1. Does the following system have a solution?Imported Asset

2 points

QUESTION 19

  1. Does the following system have a solution?Imported Asset

2 points

QUESTION 20

  1. What is the approximate solution to the system of equations graphed below?Imported Asset

2 points

QUESTION 21

  1. What is the approximate solution to the system of equations graphed below?Imported Asset

2 points

QUESTION 22

  1. What is the approximate solution of the following system of equations?Imported Asset

2 points

QUESTION 23

  1. Solve 4x + 3y = 13 x + y = 4by the substitution method.

2 points

QUESTION 24

  1. Solve the following system of equations by using the substitution method.
    x = 4 – 2y
    4x + 8y = 20

2 points

QUESTION 25

  1. Solve the following system of equations by using the substitution method.
    x = y + 3
    2x + y = 9

2 points

QUESTION 26

  1. Solve y = 3x – 122x – 3y = -13by the substitution method.

2 points

QUESTION 27

  1. What would be the first step to solve this system of equations by the Substitution Method?
    3x + 4y = -1
    x + 3y = 3

2 points

QUESTION 28

  1. What would be the first step to solve this system of equations by the Substitution Method?
    x + y = -1
    6x – 2y = 18

2 points

QUESTION 29

  1. What would be the first step to solve this system of equations by the Substitution Method?
    10x – 2y = 8
    4x – 10y = -6

2 points

QUESTION 30

  1. Solve 9x + 2y = 2
    21x + 6y = 4
    by the elimination methods.