# TMA3/ECO255 – Mathematics For Economist I

TMA Quiz Questions
TMA: TMA3/ECO255
Matric Number:  SCORE=9.00
ECO255 – Mathematics For Economist I
Mrs. Odishika Vivian Anietem (vodishika@noun.edu.ng )
1 One of these is not a property of inequality
 reciprocal property trichotomy property cumulative property addition property
2 The solution of this inequality 20y +5 < 65 is
 y> 0.3 y > 3 y < 3 y> 0.3
3 Given the following equation, 2y + 12 what value of y will produce an acute angle
 42 40 50 20
4 Provide answers to the following (i) 8 with 3 as exponent (ii) 4 with 4 as exponent
 24 and 64 518 and 254 64 and 16 512 and 256
5 The value of (-6/4)2 is
 -2.25 2.571 -2.571 2.25
6 The answer gotten when this two complex numbers (2+ 6i)+(4-4i) are added is
 7+4i 6+2i 6+10i 2+2i
7 The result of this division (3+2i) ÷ (4-3i) is
 (6 + 17i)/25 (6+ 14i)/14 (12 + 6i)/4 (4+ 5i)/20
8 A solution of an inequality is a number which when substituted for the variable, makes the inequality
 a qualitative statement a false statement a true statement a quantitative statement
9 Given this notation a≤ b, which of the following statements is false
 a is less than or equal to b a is at most equals to b a is greater than or equal to b a is not greater than b
10 If a is less than b and b is less than c, then a is less than c. What property of inequality is displayed in the statement?
 reciprocal property trichotomy property transitive property addition property
11 The value of 0.52 raised to the power 4 is?
 0.0731 0.731 7.31 0.00731
12 An equation of this nature 2x +4y = 3 is called
 Linear equation Quadratic equation Exponential equation Parabolic equation
13 The respective value of x and y in this problem :y- 3x =0 …..(1); x+ y = 8 …..(2) are
 3 and 2 respectively 2 and 3 respectively 2 and 6 respectively 6 and 2 respectively
14 In a quadratic equation, if the discriminant is negative, then the quadratic equation has
 two solutions three solutions one solution no solution
15 Venn diagrams were conceived by
 John Venn John Ven Venn Lucas Venn Picasso
16 Provide the solution to the inequality problem: 10y – 6 < -8y + 3
 y > 0.5 y ≥ 0.5 y < 0.5 y ≤ 0.5
17 If y = 90, then angle y is a/ an
 Equilateral angle Obtuse angle Right angle Left angle
18 The values of 6 raised to the power zero and 6 raised to the power 1 are
 1 and 6 respectively 0 and 1 respectively 6 and 36 respectively 0 and 6 respectively
19 The value of – 9 cube is ?
 -81 729 81 -729
20 The value of x in this equation 4x + 5 = x – 4 is
 9 -3 3 9
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