AnswersGA-Advanced Algebra Concepts and Connections CRUnit Test

Unit Test — Unit test Answers

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21
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Each column of the matrix represents a vertex of a rectangle on the coordinate plane. If Fan scales the rectangle by finding 4A, what are the vertices of the scaled rectangle?

Question illustration
A
(4, 4), (24, 4), (24, 20), (4, 20)
B
(5, 5), (10, 5), (10, 9), (5, 9)
C
(4, 4), (6, 1), (6, 5), (1, 5)
D
(5, 5), (6, 1), (6, 5), (4, 20)
22
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The constraints of a problem are listed below. What are the vertices of the feasible region?

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A
mc008-2.jpg
Option A
B
mc008-3.jpg
Option B
C
mc008-4.jpg
Option C
D
mc008-5.jpg
Option D
23

What is the maximum value of P = 24x + 30y, given the constraints on x and y listed below?

Question illustration
A
120
B
132
C
138
D
150
24

The matrix below represents a system of equations.What is the solution to this system of equations?

Question illustration
A
a = 1, b = –1, c = 2
B
a = 1.5, b = –1, c = 2
C
a = 2.5, b = –3, c = 2
D
a = 3, b = –3, c = 2
25

Suppose matrix D is the inverse of matrix C. Which of the following is equal to D?

A
CDD
B
CCD
C
DDD
D
CCC
26

Given , , .What is the value of matrix B if A + B = C?

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A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
27

What are the values of c and d in the matrix subtraction below?

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A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
28

Jonas made the following matrix of temperatures for the first 4 days of January. He also made the following matrix of temperatures for the first 4 days of February. Which matrix shows the difference of January and February?

Question illustration
A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
29

What is the solution to the system of linear equations represented by the matrix equations below?

Question illustration
A
x = 3, y = 0
B
x = 0, y =
Option B
C
The system of equations has no solution.
D
The system of equations has infinite solutions.
30

Matrix C is a transformation of matrix B, and matrix B is a transformation of matrix A, as shown below.Which matrix represents matrix C?

Question illustration
A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D

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