Mathematics - 2013 E.C (2020/2021) Ethiopian University Entrance Exam (EUEE)

Which one of the following sentences has a truth value?

What is the determinant of the matrix $\begin{bmatrix} 1 & -7 \\ 6 & 5\end{bmatrix}$?

The additive inverse of the complex number $3 - 4i$ is

What is the modulus of the complex number $-6 + 8i$?

Consider the following frequency distribution graph

What is the sixth decile?

In a certain health center there are 3 doctors, 8 nurses and 2 physicians. In how many ways one can form a group of 5 members consisting of 1 doctor, 3 nurses and 1 physician?

Which one of the following forms represents an exhaustive set of events if a die is thrown once?

A bag contains 2 red, 3 yellow and 5 green balls. One ball is drawn at random. What is the probability that the drawn ball is NOT yellow?

Which of the following is the product $AB$ of the two matrices $A=\begin{bmatrix}-2 & 3\\ 1 & 4\end{bmatrix}$ and $B=\begin{bmatrix}-1 & 5\\ 3 & 0\end{bmatrix}$?

Which one of the following is NOT true about the determinant of a given square matrix A?