Introduction to Matrices

Question 1

Which is a square matrix?

Revolt · Accepted Answer

mc013-3.jpg

Question 2

Which of the following is a diagonal matrix?

Revolt · Accepted Answer

Answer image: //media.edgenuity.com/evresources/3111-06-50/mc011-3.jpg

Question 3

The matrix below represents the number of minutes four friends spend driving to each others’ homes each week. A row label represents the friend driving and a column label represents the friend being visited.How many minutes does friend #1 spend driving to visit friend #3?

Revolt · Accepted Answer

45

Question 4

How many nonzero elements are in the matrix below?

Revolt · Accepted Answer

19

Question 5

Which is an augmented matrix for the system of linear equations below?

Revolt · Accepted Answer

mc015-5.jpg

Question 6

Mateus created a matrix using the elements below.What type of matrix did Mateus create?

Revolt · Accepted Answer

a square matrix

Question 7

Aliane created a table showing the flight information for four cities.Departing FromArriving AtFlight TimeCity ACity B4.2 hoursCity ACity C3.9 hoursCity BCity A5.1 hoursCity BCity D9.5 hoursCity CCity B1.7 hoursCity CCity D2.2 hoursCity DCity A10.5 hoursCity DCity B8.6 hoursWhich matrix correctly represents Aliane’s flight information?

Revolt · Accepted Answer

mc008-1.jpg

Question 8

Matrices C and D shown below are equal. What is the value of

Revolt · Accepted Answer

Answer image: //media.edgenuity.com/evresources/3111-06-50/mc021-4.jpg

Question 9

Matrix A is shown below. Given that Matrix A equals Matrix B, what is the value of

Revolt · Accepted Answer

0

Question 10

Matrices A and B shown below are equal. What is the value of

Revolt · Accepted Answer

–18

Introduction to Matrices Answers

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