Which of the following sets of data would you likely represent with a square matrix?

A shoe salesperson wants to use an augmented matrix to represent the quantity of children's shoes and adult shoes sold at his store for two days.

A racquetball club has a tournament where each member plays every other member and represents the scores in a matrix.

A student wants to write a coefficient matrix representing a linear system with two equations and three unknowns.

A teacher wants to write an augmented matrix representing a linear system with four equations and four unknowns.

Question

Mathematics

Josephine Rollins

4 July, 00:32

Which of the following sets of data would you likely represent with a square matrix?

A shoe salesperson wants to use an augmented matrix to represent the quantity of children's shoes and adult shoes sold at his store for two days.

A racquetball club has a tournament where each member plays every other member and represents the scores in a matrix.

A student wants to write a coefficient matrix representing a linear system with two equations and three unknowns.

A teacher wants to write an augmented matrix representing a linear system with four equations and four unknowns.

+1

Answers (2)

Know the Answer?

Kingston Roberson · Answer 1

In a square matrix, number of rows=number of collumns

first one, 2 unknowns, and 1 result

xa+yb=total

ca+dy=total

this is a 3 by 2 matrix, not a square

raquetball

not sure

student, 2 equation 3 unknowns

ax+by+cz=r

dx+ey+fz=u

das is 4 by 2

not square

teacher

augmented will not be sqauare

anyway

ax+by+cz+rt=u

bla

not a square

so the answer will be the raquetball tournament

Johnathan Mason · Answer 2

I think the answer to this question is the first one.