Introduction to Matrices Answers

Which of the following is a diagonal matrix?

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?

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?

For two matrices to be equal, they must have the same size and

Which matrix is equal to ?

How many nonzero elements are in the matrix below?

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

Drina wrote the system of linear equations below.Which type of matrix can be formed using this system of equations?

Which is a square matrix?

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