16. Let p and q be propositions with truth values true and false respectively. Which one of the following statements is NOT correct?

17. Which one of the following is equal to the sum ∑⁵_n=1 2n²?

18. company produces shirts of black and white colors from polyester and cotton. The company has 6000 units of polyester and 3000 units of cotton in its store.

A black shirt requires 5 units of polyester and 4 units of cotton, whereas a white shirt requires 3 units of polyester and 3 units of cotton.

If the factory gets a profit of Birr 120 from each black shirt and Birr 200 from each white shirt, what is the maximum profit of the company?

19. S, R, and T be any three sets. Which one of the following is NOT true about the union of the sets?

20. Which one of the following is equal to the polynomial function f(x) = x² + 4x + 4?

21. one of the following is true about the function f(x) = tan x?

22. one of the following is an equation of the parabola with vertex V and focus F(2, 0)?

23. one of the following is equal to the sum ∑_k=1⁷ 729(3^1−k)?

24 is the maximum value of z = 2x + 3y subject to the constraints:

x + y ≤ 6
2x − y ≤ 6
x ≥ 0
y ≥ 0

25. Which one of the following numbers is a common multiple of 324 and 1152?

26. Consider a circle with center O and the line segments AB, AC, and BC are chords of the circle as shown in the figure below.

If m(∠ABC) = 60° and m(∠ACB) = 40°, then what is m(∠BOC)?

27. Which one of the following is the solution of the equation
(243)^2x−3 = (81)^−3x+2 / 3
in the set of real numbers?

28. What is the total surface area of a regular square pyramid with slant height 8 cm and base area 25 cm²?

29. The following table presents the scores of Grade 11 students of a certain school in a Mathematics Examination.

What is the median of the data given in the above table?

30. What is the area of the region bounded by the graph of f(x) = x³ and the x-axis on the interval [-4, 2]?