AnswersAVA Algebra II w Statistics - S1Q1Matrices and Their Inverses

Matrices and Their Inverses — Unit test Answers

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What is the determinant of ?

Question illustration
A
–30
B
–4
C
30
D
60
22
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What is the determinant of the coefficient matrix of the system ?

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A
0
B
16
C
18
D
40
23

Carlos graphed the system of equations that can be used to solve .What are the roots of the polynomial equation?

Question illustration
A
–3, –2, 3
B
–3, 2
C
18, 32
D
18, 32, 66
24

What are the roots of the polynomial equation ? Use a graphing calculator and a system of equations.

Question illustration
A
–6, 6
B
–4, 1, 3
C
–3, –1, 4
D
1, 3
25

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

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

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Matrices and Their Inverses — Unit test Answers…