Question 1

Which of the following is the correct matrix representation of the Friday movie ticket sales?

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
If A = and B = , find 3A + B.

2 points

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

2 points

Question 4
Evaluate

2 points

Question 5
Evaluate

2 points

Question 6
Find the determinant of

2 points

Question 7
Two lines that intersect have _____ solutions.

2 points

Question 8
Does the following system of equations have a solution?

2 points

Question 9
What is the approximate solution of the following system of equations?

2 points

Question 10
Solve the following system of equations by using the substitution method. y = 2x + 3 5x â€“ 2y = -5

2 points

Question 11
Solve y = 2x – 4 by the substitution method. 7x â€“ 5y = 14

2 points

Question 12
Solve the following system of equations by using the elimination method. 3x â€“ 3y = 5 -x + y = 7

2 points

Question 13
Solve the following system of equations by using the elimination method. 2x â€“ 3y = -10 3x + 5y = 4

2 points

Question 14
Solve the following system of equations using matrices. 3x â€“ 7y = 25 5x â€“ 8y = 27

2 points

Question 15
Solve the following system of equations using matrices. 2x + 4y = 16 -4x â€“ 8y = 32

2 points

Question 16
A collection of dimes and quarters has a total value of five dollars and contains 29 coins. How much of each kind of coin are there in the collection.

2 points

Question 17
Which of the following is a solution to the following system of inequalities?

2 points

Question 18
The following is the solution of x â€“ 2y > -4. x + y â‰¥ -3

2 points

Question 19
Solve x + 2y = 10 -2x â€“ 4y = 24 5x + 5y + 5z = 15

2 points

Question 20
Solve x + y + z = -6 -2x â€“ 2y â€“ 2z = 12 5x + 5y + 5z = -30

2 points

Question 21
The sum of three numbers is 12. The first number is the difference of the other two numbers. When you add the other two numbers and subtract 8, the result will be the first number. Find the numbers.

2 points

Question 22
Which of the following are NOT perpendicular?

2 points

Question 23
YWXZ is a rhombus with diagonals that intersect at point S. Side WX measures 4a + 12. Side XZ measures 6a. Find the value of a.

2 points

Question 24
YWXZ is a rhombus with diagonals that intersect at point S. Angle WSX measures Find the value of x.

2 points

Question 25
Triangle LMN is congruent to triangle HIJ. Angle L measures angle M measures and angle J measures 2x + 10 degrees. Find the value of x.

2 points

Question 26
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