This image contains a set of matrix-related math problems. Let's go through one of them.

The first question is:

1. Perhatikan matriks berikut:

$A = \begin{pmatrix} 1 & 4 & -7 \\ 2 & 0 & 5 \end{pmatrix}$

Which of the following statements is true?

A. Matrices $A$ is $3 \times 4$

B. Matrix $A$ is a rectangular matrix

C. Determinant of matrix $A = 0$

D. Matrix $A$ is a square matrix

E. Matrix $A$ is an upper triangular matrix

Solution:

1. Matrix $A$ has dimensions $2 \times 3$ because it has 2 rows and 3 columns. This eliminates options A and D because matrix A is not square.

2. Matrix $A$ is a rectangular matrix, meaning it has more columns than rows, which makes option B correct.

3. The determinant is not defined for a non-square matrix, eliminating option C.

4. Matrix A cannot be upper triangular since it is not square, eliminating option E.

Conclusion:

The correct answer is B. Matrix A is a rectangular matrix.

Would you like me to explain more details or solve another problem from this sheet? Here are five questions related to this topic:

1. What is the difference between square and rectangular matrices?
2. How can we calculate the determinant of a square matrix?
3. What are upper triangular and lower triangular matrices?
4. Can a rectangular matrix be used in matrix multiplication?
5. What conditions must be met for a matrix to be invertible?

Tip: For non-square matrices, operations like finding determinants and inverses are not defined!