1. and the determinant of the coefficient Matrix is 5, then the value of x is equal to 



5 



3 
2. Suppose that a triangle has a vertices A=(1,2),B =(3,4) and C=(2,5) on the plane. What is the interior angle of the triangle at vertex B? 

90 ^{o} 

45^{o} 

30 ^{o} 

60^{o} 
3. Suppose proposition is false (F), Which of the following true? 








4. The orbit of mercury around the sun forms an ellipse with eccentricity 0.206, length of the major axis 1.6 X 10^{8} km and the sun at one focus. Which of the following is the best approximation of the maximum distance from Mercury to the sun? 

7.596 X 10 ^{7} km 

6.995 km X 10 ^{7} km 

8.695 km X 10 ^{7} km 

5.695 km X 10 ^{7} km 
5. Let What is the value of a if f is continuous at x =1? 

8 

0 

4 

2 
6. The area of the region bounded between the graph of f(x) = x^{3} and the xaxis from x = 1 to x = 2 is 

16 



4 


7. A business association gets a net profit of Birr 3,000 at the end of each month. Just after the fifth year, its amount was Birr 230,000. What was the starting amount of the business? 

Birr 47,000 

Birr 50,000 

Birr 53,000 

Birr 56,000 
8. The following is a table of simple frequency distribution of a data with variable x. x  1  3  4  5  7  Frequency  2  5  6  5  2  The standard deviation of the data is equal to: 



3 




9. The solution set of the equation 9( 1  2log3^{x}) = 4 is: 








10. Line l passes through (0,5) and (5,0), what is the angle between the yaxis and l in radian measure? 








