Unit Test — Unit test Answers

What is the product?

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

Ming drew a triangle. The sum of the angles of the triangle is 180º. In Ming’s triangle, B is twice the measure of A, and angle C is 5º greater than four times A. The system of equations below can be used to find the measure of the three angles, where a represents the measure of A, b represents the measure of B, and c represents the measure of C.a + b + c = 180 2a = b 4a + 5 = cWhich matrix represents the measure of each angle in Ming’s triangle?

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

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?

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

Which operation properly transforms matrix I to matrix II?

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?

What is the product?

What is the value of C in the matrix equation below?

The matrix represents the length of 12 in. and the width of 4 in. of a rectangle. If matrix multiplication is used to double the length and width of the rectangle, which rectangle represents the result of the matrix multiplication?

What is the value of element 1,1 in matrix X?

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?

What is the value of x in the matrix equation below?

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

What is the value of given the matrix equation below?

What is the product?

What is the product?

What is the difference of the matrices shown below?

Janelle wrote the matrix addition below.Which statement is true?