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Worksheets

Page 1

Total questions: 150

Worksheet time: 1hrs 15mins

Name
Class
Date
1.

Consider the polynomial 5y(x−1)−5x(1−x)5y(x-1) - 5x(1-x) . Choose the correct statements.

a)

By applying the sign change rule, we obtain a new polynomial 5y(x−1)+5x(x−1)5y(x-1) + 5x(x-1) .

b)

Factoring out 5(x−1)5(x-1) gives us 5(x−1)(x+y)5(x-1)(x + y) .

c)

Factoring out x−1x-1 gives us (x−1)(5y+5x)(x-1)(5y + 5x) .

d)

Factoring the polynomial gives us the result 5(x−1)(x+y)5(x-1)(x + y) .

2.

A regular quadrilateral pyramid has a slant height of 2525 cm, and its base is a square ABCDABCD with a side length of 3030 cm. Choose the correct statements.

a)

The segment of the pyramid is 2020 cm.

b)

The area of the base of the pyramid is 800cm2800\text{cm}^2 .

c)

The lateral surface area of the pyramid is 1200cm21200\text{cm}^2 .

d)

The total surface area of the pyramid is 2100cm22100\text{cm}^2 .

3.

A regular quadrilateral pyramid has a slant height of 1717 cm, and its base is a square ABCDABCD with a side length of 1616 cm. Choose the correct statements.

a)

The height of the pyramid is 2020 cm.

b)

The area of the base of the pyramid is 256cm2256\text{cm}^2 .

c)

The lateral surface area of the pyramid is 480cm2480\text{cm}^2 .

d)

The total surface area of the pyramid is 736cm2736\text{cm}^2 .

4.

Find xx , knowing that x2−4x=0x^2 - 4x = 0 . Select all values of xx that satisfy.

a)

x=0x=0

b)

x=4x=4

c)

x=2x=2

d)

x=−4x=-4

5.

Mark true or false for the statement: x = 4 is not a solution of the equation.

a)

True

b)

False

6.

Mark true or false for the statement: The set of solutions of the equation is S = {0}\{0\} .

a)

True

b)

False

7.

Mark true or false for the statement: The set of solutions of the equation is S = {0; 4}\{0;\,4\} .

a)

True

b)

False

8.

Determine the truth value of the following statements with the production cost given by C(x)=2x+5x−1C(x)=\dfrac{2x+5}{x-1} (million VND), where x>1x>1 is the number of units produced: C(2) = 9.

a)

True

b)

False

9.

Consider the truth value of the following statements with the production cost given by C(x)=2x+5x−1C(x)=\dfrac{2x+5}{x-1} (million VND), where x>1x>1 : If x=3x=3 then the cost is 5.5 million VND.

a)

True

b)

False

10.

Determine the truth value of the following statements regarding the production cost given by C(x)=2x+5x−1C(x)=\dfrac{2x+5}{x-1} : The fraction C(x)C(x) is undefined at x=1x=1 .

a)

True

b)

False

11.

Consider the truth value of the following statements with the production cost given by C(x)=2x+5x−1C(x)=\dfrac{2x+5}{x-1} : When the number of products xx increases, the production cost C(x)C(x) decreases and is always more than 4 million VND.

a)

True

b)

False

12.

A vehicle travels a distance of ss (km) in a time of tt (hours), with an average speed of st\dfrac{s}{t} (km/h). Consider the truth value of the following statements: The fraction is undefined at t=0t=0 .

a)

True

b)

False

13.

A vehicle travels a distance of ss (km) in a time of tt (hours), with an average speed of st\dfrac{s}{t} (km/h). Consider the truth value of the following statements: If s=100s=100 , t=2t=2 then the average speed is 50 km/h.

a)

True

b)

False

14.

A vehicle travels a distance of ss (km) in a time of tt (hours), with an average speed of st\dfrac{s}{t} (km/h). Consider the truth value of the following statements: The travel time is tt (hours).

a)

True

b)

False

15.

A car travels a distance of ss (km) in a time of tt (hours), with an average speed of st\dfrac{s}{t} (km/h). Consider the truth value of the following statements: If the car travels 30 km each hour and after 3 hours the distance traveled is 30t30t (km).

a)

True

b)

False

16.

Consider the expression (2a+3b)2(2a+3b)^2 . Evaluate the truth of the following statements: The expansion of the expression yields 4a2+12ab+9b24a^2+12ab+9b^2 .

a)

True

b)

False

17.

Consider the expression (2a+3b)2(2a+3b)^2 . Evaluate the truth of the following statements: With a=1a=1 and b=−2b=-2 , the value of the expression is 16.

a)

True

b)

False

18.

Consider the expression (2a+3b)2(2a+3b)^2 . Evaluate the truth of the following statements: For the value of the expression to be 0, then a=1a=1 , b=−1b=-1 .

a)

True

b)

False

19.

Given the expression B=(1x+3x+2)−(1x−1x+1+3x+2)B = \left(\frac{1}{x} + \frac{3}{x+2}\right) - \left(\frac{1}{x} - \frac{1}{x+1} + \frac{3}{x+2}\right) . Determine the truth value of the statement: The conditions for the expression B are that x is not equal to 0 and x is not equal to -1.

a)

True

b)

False

20.

Consider the expression B=(1x+3x+2)−(1x−1x+1+3x+2)B = \left(\frac{1}{x} + \frac{3}{x+2}\right) - \left(\frac{1}{x} - \frac{1}{x+1} + \frac{3}{x+2}\right) . Determine the truth value of the statement: The simplified result of the expression B is 1x+1\frac{1}{x+1} .

a)

True

b)

False

21.

Consider the expression B=(1x+3x+2)−(1x−1x+1+3x+2)B = \left(\frac{1}{x} + \frac{3}{x+2}\right) - \left(\frac{1}{x} - \frac{1}{x+1} + \frac{3}{x+2}\right) . Determine the truth value of the statement: When x = 0, the value of the expression B equals 1.

a)

True

b)

False

22.

Given the expression B=(1x+3x+2)−(1x−1x+1+3x+2)B = \left(\frac{1}{x} + \frac{3}{x+2}\right) - \left(\frac{1}{x} - \frac{1}{x+1} + \frac{3}{x+2}\right) . Determine the truth value of the statement: The expression B takes an integer value when x = −2.

a)

True

b)

False

23.

Given the expression M=x2+3x−2−3xx−2+x−12−xM = \frac{x^2 + 3}{x - 2} - \frac{3x}{x - 2} + \frac{x - 1}{2 - x} . Determine the truth value of the statement: The condition for the expression M to be defined is that x is not equal to 2.

a)

True

b)

False

24.

Consider the expression M=x2+3x−2−3xx−2+x−12−xM = \frac{x^2 + 3}{x - 2} - \frac{3x}{x - 2} + \frac{x - 1}{2 - x} . Determine the truth value of the statement: The simplified result of the expression M is 2−x2 - x .

a)

True

b)

False

25.

Given the expression M=x2+3x−2−3xx−2+x−12−xM = \frac{x^2 + 3}{x - 2} - \frac{3x}{x - 2} + \frac{x - 1}{2 - x} . Determine the truth value of the statement: The value of M at x = 2025 is 2023.

a)

True

b)

False

26.

Given the expression M=x2+3x−2−3xx−2+x−12−xM = \frac{x^2 + 3}{x - 2} - \frac{3x}{x - 2} + \frac{x - 1}{2 - x} . Determine the truth value of the statement: If M = 4, then x = −6.

a)

True

b)

False

27.

Assertion: x2−6x+9−y2=(x2−6x+9)−y2x^2 - 6x + 9 - y^2 = (x^2 - 6x + 9) - y^2 . Choose true or false.

a)

True

b)

False

28.

Statement: Next, using the identity method, we get x2−6x+9−y2=(x+3)2−y2x^2 - 6x + 9 - y^2 = (x + 3)^2 - y^2 . Choose true or false.

a)

True

b)

False

29.

Statement: Analyzing the polynomial above, we get the result as (x−y−3)(x+y−3)(x - y - 3)(x + y - 3) . Choose true or false.

a)

True

b)

False

30.

Statement: The value of the polynomial at x=3x = 3 , y=3y = 3 is 99 . Choose true or false.

a)

True

b)

False

31.

A regular triangular pyramid has a base edge of 10 cm10\text{ cm} and a height of 12 cm12\text{ cm} . The statement: The height of the base is 4,33 cm4{,}33\text{ cm} . Choose true or false.

a)

True

b)

False

32.

A regular triangular pyramid has a base edge of 10 cm10\text{ cm} and a height of 12 cm12\text{ cm} . The statement: The area of the base of the pyramid is 43,3 cm243{,}3\text{ cm}^2 . Choose true or false.

a)

True

b)

False

33.

A regular triangular pyramid has a base edge of 10 cm10\text{ cm} and a height of 12 cm12\text{ cm} . The statement: The total surface area of the pyramid is 219,01 cm2219{,}01\text{ cm}^2 . Choose true or false.

a)

True

b)

False

34.

A regular triangular pyramid has a base edge of 10 cm10\text{ cm} and a height of 12 cm12\text{ cm} . The statement: The volume of the pyramid is 173,21 cm3173{,}21\text{ cm}^3 . Choose true or false.

a)

True

b)

False

35.

For the polynomial B=x2−y2−2x−2yB = x^2 - y^2 - 2x - 2y . The statement: The value of BB at x=2x = 2 , y=−2y = -2 is 00 . Choose true or false.

a)

True

b)

False

36.

For the polynomial B=x2−y2−2x−2yB = x^2 - y^2 - 2x - 2y . The statement: Factoring BB results in (x−y)(x+y−2)(x - y)(x + y - 2) . Choose true or false.

a)

True

b)

False

37.

For the polynomial B=x2−y2−2x−2yB = x^2 - y^2 - 2x - 2y . Statement: The minimum value of B+2y2+5B + 2y^2 + 5 is −3-3 . Choose true or false.

a)

True

b)

False

38.

For the polynomial B=x2−y2−2x−2yB = x^2 - y^2 - 2x - 2y . The statement: At x=y=−1x = y = -1 then B+2y2+5B + 2y^2 + 5 reaches its minimum value. Choose true or false.

a)

True

b)

False

39.

Please determine whether the statement is true or false: The area of the small square with stripes is x2x^2 ; The area of the large square with stripes is y2y^2 .

a)

True

b)

False

40.

Determine whether the statement is true or false: The area of each rectangle is xyxy .

a)

True

b)

False

41.

Determine whether the statement is true or false: The total area of squares and rectangles is x2+2xy+y2x^2 + 2xy + y^2 .

a)

True

b)

False

42.

Determine whether the statement is true or false: With x=2x = 2 ; y=3y = 3 , the total area of the original square is 13.

a)

True

b)

False

43.

Let the polynomial A=n3−5n2+4nA = n^3 - 5n^2 + 4n . Determine whether the statement is true or false: AA is divisible by 3.

a)

True

b)

False

44.

For the polynomial A=n3−5n2+4nA = n^3 - 5n^2 + 4n . Determine whether the following statement is true or false: AA is not divisible by 5.

a)

True

b)

False

45.

For the polynomial A=n3−5n2+4nA = n^3 - 5n^2 + 4n . Determine whether the statement is true or false: AA is not divisible by 6.

a)

True

b)

False

46.

Let the polynomial A=n3−5n2+4nA = n^3 - 5n^2 + 4n . Determine whether the following statement is true or false: AA is divisible by 120.

a)

True

b)

False

47.

Given the expression B=2x2−5x−6+x−1x+1B = \dfrac{2}{x^2 - 5x - 6} + \dfrac{x - 1}{x + 1} . Determine whether the following statement is true or false: The conditions for definition are x≠±1x \ne \pm 1 and x≠6x \ne 6 .

a)

True

b)

False

48.

Given the expression B=2x2−5x−6+x−1x+1B = \dfrac{2}{x^2 - 5x - 6} + \dfrac{x - 1}{x + 1} . Determine whether the following statement is true or false: It can be simplified to B=2x−6B = \dfrac{2}{x - 6} .

a)

True

b)

False

49.

Given the expression B=2x2−5x−6+x−1x+1B = \dfrac{2}{x^2 - 5x - 6} + \dfrac{x - 1}{x + 1} . Determine whether the following statement is true or false: When x=4x = 4 , then B=−13B = -\dfrac{1}{3} .

a)

True

b)

False

50.

Given the expression B=2x2−5x−6+x−1x+1B = \dfrac{2}{x^2 - 5x - 6} + \dfrac{x - 1}{x + 1} . Determine whether the following statement is true or false: For B=13B = \dfrac{1}{3} , x=0x = 0 or x=7x = 7 .

a)

True

b)

False

51.

Select the correct statements related to the area of the garden, with the following statements.

a)

The area of the garden is represented by: S=4xy3+24xy+2x2y2S = 4xy^3 + 24xy + 2x^2y^2 (m 2^2 ).

b)

If y=2y = 2 then the area of the garden is S=56x+8x2S = 56x + 8x^2 (m 2^2 ).

c)

If the area is 88 m 2^2 and y=2y = 2 then we have 8x2+56x−88=08x^2 + 56x - 88 = 0 .

d)

The positive integer value xx that satisfies 8x2+56x−88=08x^2 + 56x - 88 = 0 is x=2x = 2 .

52.

A team of vehicles plans to use a number of the same type of vehicles to transport 120 tons of goods from location A to location B. Just before departure, the team adds 5 more vehicles of the same type. Knowing that the amount of goods each vehicle carries is the same. Let xx be the number of vehicles originally planned to be used ( x∈N∗x \in \mathbb{N}^* ). Choose the correct statements.

a)

The amount of goods that each vehicle is supposed to carry is 120x\dfrac{120}{x} (tons).

b)

The amount of goods that each vehicle actually carries is 120x−5\dfrac{120}{x-5} (tons).

c)

The difference between the amount of goods that each vehicle is supposed to carry and the amount that each vehicle actually carries is 120x(x+5)\dfrac{120}{x(x+5)} (tons).

d)

If there are actually 10 vehicles, then the difference between the amount of goods that each vehicle is supposed to carry and the amount that each vehicle actually carries is 5 (tons).

53.

Evaluate the truth of the following statements. Choose the correct statements.

a)

(−A−B)2=(A+B)2(-A - B)^2 = (A + B)^2 .

b)

(−A−B)2=−(A+B)2(-A - B)^2 = - (A + B)^2 .

c)

(−A−B)2=(B−A)2(-A - B)^2 = (B - A)^2 .

d)

(−A−B)2=−(B+A)2(-A - B)^2 = - (B + A)^2 .

54.

Consider the expression (x+2y)2−(x−2y)2(x + 2y)^2 - (x - 2y)^2 . Choose the correct statements.

a)

Simplifying the above expression gives x2−2xy+4y2x^2 - 2xy + 4y^2 .

b)

With x=0x = 0 , y=1y = 1 , the value of the expression is 00 .

55.

True or false: A monomial that does not contain a variable is a constant.

a)

True

b)

False

56.

True or false: 0 is a monomial.

a)

True

b)

False

57.

True or false: A monomial with a coefficient of 0 has a degree of 0.

a)

True

b)

False

58.

True or false: 0x2y30x^2y^3 is a monomial and has a degree of 3.

a)

True

b)

False

59.

Consider the regular triangular pyramid I.ABC as shown in the figure; the base is triangle ABC, O is the center of the base, and side AC is labeled 15cm. Evaluate the truth of the statement: Face ABC is a lateral face of the pyramid.

a)

True

b)

False

60.

Consider the regular triangular pyramid I.ABC as shown in the figure; O is the center of the base. Evaluate the truth of the statement: The line IO is the height of the pyramid.

a)

True

b)

False

61.

Consider the regular triangular pyramid I.ABC as shown in the figure; the edge AC is marked 15cm. Evaluate the truthfulness: The length of the base edge is 15cm.

a)

True

b)

False

62.

Consider the regular triangular pyramid I.ABC. Evaluate the truth of the statement: Triangle ABC is right-angled at B.

a)

True

b)

False

63.

Consider the fraction xx+1\dfrac{x}{x+1} . Determine the truth value: The fraction is undefined when x=−1x=-1 .

a)

True

b)

False

64.

Consider the fraction xx+1\dfrac{x}{x+1} . Determine the truth value: The fraction has a denominator of x+1x+1 .

a)

True

b)

False

65.

Consider the fraction xx+1\dfrac{x}{x+1} . Evaluate the truth of the statement: The numerator of the fraction is xx .

a)

True

b)

False

66.

Consider the fraction xx+1\dfrac{x}{x+1} . Evaluate the truth value: The value of the fraction when x=0x=0 is equal to 00 .

a)

True

b)

False

67.

For the monomial E=−5xy0E=-5xy^0 . Consider the truth value: The variable part is xy0xy^0 .

a)

True

b)

False

68.

For the monomial E=−5xy0E=-5xy^0 . Consider the statement: The degree of EE is 1.

a)

True

b)

False

69.

Consider the monomial E=−5xy0E=-5xy^0 . Determine the truth value: The coefficient of EE is 5.

a)

True

b)

False

70.

Consider the monomial E=−5xy0E=-5xy^0 . Evaluate the truth of the statement: EE has a variable part equal to 0 and a negative coefficient.

a)

True

b)

False

71.

Evaluate the truth of the following statements about the given expression: Expanding the expression yields 8x3+3x2+12x+188x^3 + 3x^2 + \frac{1}{2}x + \frac{1}{8} . Is this statement true or false?

a)

True

b)

False

72.

For the above expression, with x=12x = \frac{1}{2} , the expression takes the value of 83\frac{8}{3} . Is this statement true or false?

a)

True

b)

False

73.

For the above expression, in order for the expression to equal 00 , then x=−1x = -1 . Is this statement true or false?

a)

True

b)

False

74.

For the above expression, in order for the expression to equal 2727 , then x=54x = \frac{5}{4} . Is this statement true or false?

a)

True

b)

False

75.

Consider the expression M=x2−x+−2x+2−x34−x2M = \dfrac{x}{2-x} + \dfrac{-2}{x+2} - \dfrac{x^3}{4-x^2} . Evaluate the truth of the following statements: The condition for the expression MM is x≠±2x \ne \pm 2 . Is this statement true or false?

a)

True

b)

False

76.

Consider the expression M=x2−x+−2x+2−x34−x2M = \dfrac{x}{2-x} + \dfrac{-2}{x+2} - \dfrac{x^3}{4-x^2} . Evaluate the truth of the following statements: The simplified result of the expression MM is x+1x + 1 . Is this statement true or false?

a)

True

b)

False

77.

Consider the expression M=x2−x+−2x+2−x34−x2M = \dfrac{x}{2-x} + \dfrac{-2}{x+2} - \dfrac{x^3}{4-x^2} . Evaluate the truth of the following statements: The value of the expression MM equals 20242024 when x=2025x = 2025 . Is this statement true or false?

a)

True

b)

False

78.

Consider the expression M=x2−x+−2x+2−x34−x2M = \dfrac{x}{2-x} + \dfrac{-2}{x+2} - \dfrac{x^3}{4-x^2} . Evaluate the truth of the following statements: The value of x=2x = 2 when M=3M = 3 . Is this statement true or false?

a)

True

b)

False

79.

Evaluate the truth of the following statements: An integer is also a monomial. Is this statement true or false?

a)

True

b)

False

80.

Determine the truth value of the following statement: −7-7 is a monomial of degree 00 . Is this statement true or false?

a)

True

b)

False

81.

Determine the truth value of the following statements: The sum of two monomials is a monomial. Is this statement true or false?

a)

True

b)

False

82.

Evaluate the truth of the following statements: The degree of the monomial 4x2y34x^2y^3 is 55 . Is this statement true or false?

a)

True

b)

False

83.

A cube-shaped wooden block has a side length of xx (cm). A part of the cube with a side length of 1212 (cm) is cut off. Determine the truth value of the following statement: The volume of the original cube-shaped wooden block is x3x^3 (cm 3^3 ).

a)

True

b)

False

84.

A cube-shaped block of wood has a side length of xx (cm). A part of the cube-shaped block of wood with a side length of 1212 (cm) is cut off. Please determine the truth value of the following statement: The volume of the cut-off cube-shaped block of wood is 17281728 (cm 3^3 ).

a)

True

b)

False

85.

Statement: The volume of the remaining wood is V=x3−1728 (cm3)V = x^3 - 1728\,(\text{cm}^3) . Please choose True or False.

a)

True

b)

False

86.

Statement: With x=26 (cm)x = 26\,(\text{cm}) , the volume of the remaining wood is 15848 (cm3)15848\,(\text{cm}^3) . Please choose True or False.

a)

True

b)

False

87.

Evaluate the truth value of the statement: 2x2+3x2=5x22x^2 + 3x^2 = 5x^2 .

a)

True

b)

False

88.

Determine the truth value of the statement: 4x+x24x + x^2 can be simplified to 5x25x^2 .

a)

True

b)

False

89.

Evaluate the truth of the statement: Simplifying 3x2−2x+5−x2+4x−23x^2 - 2x + 5 - x^2 + 4x - 2 results in 6x2−x6x^2 - x .

a)

True

b)

False

90.

Evaluate the truth value of the statement: 2x2+3x2−x+x22x^2 + 3x^2 - x + x^2 simplifies to 6x2−x6x^2 - x .

a)

True

b)

False

91.

Consider the fraction x2−9x+3\dfrac{x^2 - 9}{x + 3} . The statement: The fraction is undefined at x=−3x = -3 . Please choose True or False.

a)

True

b)

False

92.

Consider the fraction x2−9x+3\dfrac{x^2 - 9}{x + 3} . The statement: The simplified fraction is x−3x - 3 . Please choose True or False.

a)

True

b)

False

93.

Consider the fraction x2−9x+3\dfrac{x^2 - 9}{x + 3} . The statement: The solution of the expression is x=−3x = -3 . Please choose True or False.

a)

True

b)

False

94.

For the fraction x2−9x+3\dfrac{x^2 - 9}{x + 3} . The statement: The value of the fraction is 55 when x=−2x = -2 . Please choose True or False.

a)

True

b)

False

95.

A rectangular cardboard has a length of x+43 (cm)x + 43\,(\text{cm}) and a width of x+30 (cm)x + 30\,(\text{cm}) . Squares with a side length of y2+1 (cm)y^2 + 1\,(\text{cm}) are cut from each corner of the cardboard, and the remaining part is folded to form an open-top box. The statement: The length of the rectangular box is x−2y2+41 (cm)x - 2y^2 + 41\,(\text{cm}) . Please choose True or False.

a)

True

b)

False

96.

A rectangular cardboard has a length of x+43 (cm)x + 43\,(\text{cm}) and a width of x+30 (cm)x + 30\,(\text{cm}) . Squares with a side length of y2+1 (cm)y^2 + 1\,(\text{cm}) are cut from each corner of the cardboard, and the remaining part is folded to form an open-top box. The statement: The width of the rectangular box is x−2y2+28 (cm)x - 2y^2 + 28\,(\text{cm}) . Please choose True or False.

a)

True

b)

False

97.

A regular quadrilateral pyramid has a height of 14 cm, and its base is a square ABCD with a side length of 15 cm. The following statement is true or false: The lateral edge of the pyramid is 17.56 cm.

a)

True

b)

False

98.

A regular quadrilateral pyramid has a height of 14 cm, and its base is a square ABCD with a side length of 15 cm. The following statement is true or false: The area of the base of the pyramid is 250 cm².

a)

True

b)

False

99.

A regular quadrilateral pyramid has a height of 14 cm, and its base is a square ABCD with a side length of 15 cm. The following statement is true or false: The lateral surface area of the pyramid is 476.4 cm².

a)

True

b)

False

100.

A regular quadrilateral pyramid has a height of 14 cm, and its base is a square ABCD with a side length of 15 cm. The following statement is true or false: The volume of the pyramid is 1,000 cm³.

a)

True

b)

False

101.

Mr. Chau borrows 1.6 billion VND from the bank to buy a house in the form of installment payments; the monthly payment includes the principal divided equally over the number of months of the loan y (months) and the monthly interest calculated based on the monthly interest rate. Let x be the monthly payment (million VND) and r be the annual interest rate. The following statement is true or false: The monthly interest rate is r/12r/12 .

a)

True

b)

False

102.

Mr. Chau borrows 1.6 billion VND from the bank to buy a house in the form of installment payments; the monthly payment includes the principal divided equally over the number of months borrowed y (months) and the monthly interest calculated based on the annual interest rate. Let x be the monthly payment (million VND) and r be the annual interest rate. The following statement is true or false: x=1600/y+1600⋅r/12x = 1600/y + 1600\cdot r/12 (million VND).

a)

True

b)

False

103.

Uncle Chau borrows 1.6 billion VND from the bank to buy a house in the form of installment payments; the monthly payment includes the principal divided equally by the number of months borrowed y (months) and the monthly interest calculated based on the annual interest rate. Let x be the monthly payment (million VND) and r be the annual interest rate. The following statement is true or false: The formula for calculating rr in terms of xx and yy is r=3(xy−1600)400yr = \dfrac{3(xy - 1600)}{400y} .

a)

True

b)

False

104.

Bác Châu borrowed 1.6 billion VND from the bank to buy a house in the form of installment payments; the monthly payment includes the principal divided equally over the number of months borrowed y (months) and the monthly interest calculated at the monthly interest rate. The following statement is true or false: If Bác Châu pays 20 million VND each month for 10 years, then the annual interest rate (in %) is 4.5%.

a)

True

b)

False

105.

The image of a trapezoidal wall with a larger base 8x8x , a smaller base 4x4x , and a height hh . There is a rectangular window with dimensions 2x2x and 2h2h placed in the middle of the wall. Determine the truth value of the statement: The area of the trapezoidal wall (not subtracting the window) is 12xh12xh (m²).

a)

True

b)

False

106.

The image of a trapezoidal wall with a larger base 8x8x , a smaller base 4x4x , and a height hh . There is a rectangular window with dimensions 2x2x and 2h2h placed in the middle of the wall. Determine the truth value of the statement: The ratio of the area of the window to the total area of the wall (not subtracting the window) is x3h\dfrac{x}{3h} .

a)

True

b)

False

107.

The image of a trapezoidal wall with a larger base 8x8x , a smaller base 4x4x , and a height hh . There is a rectangular window with dimensions 2x2x and 2h2h placed in the middle of the wall. Determine the truth value of the statement: If h=2xh=2x , then the area of the window is equal to 13\dfrac{1}{3} of the total area of the wall.

a)

True

b)

False

108.

The image of a trapezoidal wall with a larger base 8x8x , a smaller base 4x4x , and a height hh . There is a rectangular window with dimensions 2x2x and 2h2h placed in the middle of the wall. Determine the truth value of the statement: If x=3x=3 (m) and h=5h=5 (m), then the actual area of the wall (excluding the window) is 7878 (m²).

a)

True

b)

False

109.

Let M=x+3x−2+x−3x+2−2x2+3x+6x2−4M=\dfrac{x+3}{x-2}+\dfrac{x-3}{x+2}-\dfrac{2x^2+3x+6}{x^2-4} . Consider the truth value of the statement: The domain of the expression MM is x≠±2x\ne \pm 2 .

a)

True

b)

False

110.

Let M=x+3x−2+x−3x+2−2x2+3x+6x2−4M=\dfrac{x+3}{x-2}+\dfrac{x-3}{x+2}-\dfrac{2x^2+3x+6}{x^2-4} . Consider the truth value of the statement: The simplified result of the expression MM is 3x+2\dfrac{3}{x+2} .

a)

True

b)

False

111.

Let M=x+3x−2+x−3x+2−2x2+3x+6x2−4M=\dfrac{x+3}{x-2}+\dfrac{x-3}{x+2}-\dfrac{2x^2+3x+6}{x^2-4} . Consider the truth value of the statement: The value of the expression MM is equal to 35\dfrac{3}{5} when x=3x=3 .

a)

True

b)

False

112.

Let M=x+3x−2+x−3x+2−2x2+3x+6x2−4M=\dfrac{x+3}{x-2}+\dfrac{x-3}{x+2}-\dfrac{2x^2+3x+6}{x^2-4} . Consider the truth value of the statement: For all integer values x∈{−1;1;−3;−5}x\in\{-1;1;-3;-5\} , MM takes integer values.

a)

True

b)

False

113.

A square has a side length of x+5x+5 (cm). Inside the square, a smaller square is drawn with a side length of x−2x-2 (cm). Consider the truth of the statement: The area of the larger square and the area of the smaller square are respectively (x+5)2(x+5)^2 (cm²) and (x−2)2(x-2)^2 (cm²).

a)

True

b)

False

114.

A square has a side length of x+5x+5 (cm). Inside the square, a smaller square is drawn with a side length of x−2x-2 (cm). Consider the truth value of the statement: The area of the remaining part of the square is (x+5)2−(x−2)2(x+5)^2-(x-2)^2 (cm²).

a)

True

b)

False

115.

A square has a side length of x+5x+5 (cm). Inside the square, a smaller square is drawn with a side length of x−2x-2 (cm). Consider the truth value of the statement: The area of the remaining part of the square when simplified is 7(2x+3)7(2x+3) (cm²).

a)

True

b)

False

116.

Let the fraction A = x2+4x+4x−2\dfrac{x^2 + 4x + 4}{x - 2} and B = x+23\dfrac{x + 2}{3} . Consider the truth value of the statement: The condition for the value of fraction A is defined as x≠4x \ne 4 .

a)

True

b)

False

117.

Let the fraction A = x2+4x+4x−2\dfrac{x^2 + 4x + 4}{x - 2} and B = x+23\dfrac{x + 2}{3} . Consider the truth value of the statement: Calculate C=A:B=x+23(x−2)C = A : B = \dfrac{x + 2}{3(x - 2)} .

a)

True

b)

False

118.

Let the fraction A = x2+4x+4x−2\dfrac{x^2 + 4x + 4}{x - 2} . Consider the truth value of the statement: When x=4x = 4 , the fraction A has a value of 1616 .

a)

True

b)

False

119.

Evaluate the truth of the statement: To make the fraction C=x+23(x−2)C = \dfrac{x + 2}{3(x - 2)} equal to 11 , then x=4x = 4 .

a)

True

b)

False

120.

A morning store sold 8x3y+5x6y5−3x5y48x^3y + 5x^6y^5 - 3x^5y^4 ; in the afternoon, it sold x6y5−x5y4x^6y^5 - x^5y^4 (bags of rice). Determine the truth value of the statement: The expression representing the total number of bags of rice sold in one day is 6x6y5−4x5y4+8x3y6x^6y^5 - 4x^5y^4 + 8x^3y .

a)

True

b)

False

121.

A morning store sold 8x3y+5x6y5−3x5y48x^3y + 5x^6y^5 - 3x^5y^4 ; in the afternoon it sold x6y5−x5y4x^6y^5 - x^5y^4 . Determine the truth of the statement: With x=1x = 1 , y=2y = 2 the total number of bags of rice sold in a day is 144144 bags.

a)

True

b)

False

122.

A morning store sold 8x3y+5x6y5−3x5y48x^3y + 5x^6y^5 - 3x^5y^4 ; in the afternoon, it sold x6y5−x5y4x^6y^5 - x^5y^4 . Determine the truth of the statement: With x=1x = 1 , y=2y = 2 , the total number of bags of rice sold in the afternoon is 3232 bags.

a)

True

b)

False

123.

A morning store sold 8x3y+5x6y5−3x5y48x^3y + 5x^6y^5 - 3x^5y^4 ; in the afternoon it sold x6y5−x5y4x^6y^5 - x^5y^4 . Determine the truth of the statement: With x=1x = 1 , y=2y = 2 , the number of bags of rice sold in the morning accounts for 34\dfrac{3}{4} of the total number of bags.

a)

True

b)

False

124.

To commemorate the 30th anniversary of a secondary school, the school's youth union plans to plant 100 green trees in the schoolyard. Let xx be the initial number of union members of the youth union, and suppose the number of trees each member plants is the same. Consider the truth value of the statement: The number of trees each member is expected to plant is 100x\dfrac{100}{x} (trees).

a)

True

b)

False

125.

The number of trees each member plants according to reality is 100x+2\dfrac{100}{x+2} (trees).

a)

True

b)

False

126.

The number of trees each member plans to plant is more than the number of trees each member actually plants by 100x(x+2)\dfrac{100}{x(x+2)} (trees).

a)

True

b)

False

127.

If the number of trees each member plans to plant is 25 trees more than the number of trees each member actually plants, then the number of members who participated in planting trees is 5 members.

a)

True

b)

False

128.

Consider the expression A=6x2+6x+1x+6+5xA = \dfrac{6}{x^2+6x} + \dfrac{1}{x+6} + \dfrac{5}{x} . Evaluate the truth of the following statements: The conditions for the expression A are x≠0x \ne 0 and x≠6x \ne 6 .

a)

True

b)

False

129.

Consider the expression A=6x2+6x+1x+6+5xA = \dfrac{6}{x^2+6x} + \dfrac{1}{x+6} + \dfrac{5}{x} . Evaluate the truth of the following statements: The simplified result of the expression AA is 5x\dfrac{5}{x} .

a)

True

b)

False

130.

Consider the expression A=6x2+6x+1x+6+5xA = \dfrac{6}{x^2+6x} + \dfrac{1}{x+6} + \dfrac{5}{x} . Evaluate the truth of the following statements: The value of the expression AA at x=2x = 2 is 33 .

a)

True

b)

False

131.

Consider the expression A=6x2+6x+1x+6+5xA = \dfrac{6}{x^2+6x} + \dfrac{1}{x+6} + \dfrac{5}{x} . Evaluate the truth of the following statements: With x=−3x = -3 , the expression AA takes a negative value.

a)

True

b)

False

132.

Determine the truth value of the following statements: 3x2y33x^2y^3 is a monomial.

a)

True

b)

False

133.

Determine the truth value of the following statements: 57a2b\dfrac{5}{7}a^2b is a monomial.

a)

True

b)

False

134.

Determine the truth value of the following statements: A variable in a monomial is a letter present in the expression.

a)

True

b)

False

135.

Determine the truth value of the following statements: 3x2y+53x^2y + 5 is a monomial.

a)

True

b)

False

136.

Consider the regular triangular pyramid S.ABC, with AC = 6cm, SH = 9cm. Evaluate the truth of the following statements: ABC is the base of the pyramid.

a)

True

b)

False

137.

Consider the regular triangular pyramid S.ABC, with AC = 6cm, SH = 9cm. Evaluate the truth of the following statements: Edge BC = 6cm.

a)

True

b)

False

138.

Consider the regular triangular pyramid S.ABC, with AC = 6cm, SH = 9cm. Evaluate the truth of the following statements: SH is the height of the pyramid.

a)

True

b)

False

139.

Consider the regular triangular pyramid S.ABC, with AC = 6cm, SH = 9cm. Evaluate the truth of the following statements: SA = SB = SC = 9cm.

a)

True

b)

False

140.

A tank contains xx liters of water, a tap with water flowing out at a rate of x/tx/t liters/hour. Consider the truth value of the statement: The expression x/tx/t is an algebraic fraction if t≠0t \ne 0 .

a)

True

b)

False

141.

A tank contains xx liters of water, a tap with water flowing out at a rate of x/tx/t liters/hour. Consider the truth value of the statement: If x=120x=120 , t=4t=4 then the flow rate of the tap is 3030 liters/hour.

a)

True

b)

False

142.

A tank contains xx liters of water, a tap with water flowing out at a rate of x/tx/t liters/hour. Consider the truth value of the statement: The fraction is undefined at t=0t=0 .

a)

True

b)

False

143.

A tank contains xx liters of water, a tap with water flowing out at a rate of x/tx/t liters/hour. Consider the truth of the statement: If the tap can flow 4040 liters/hour and after 44 hours the water in the tank runs out, then the initial amount of water in the tank is 100100 liters.

a)

True

b)

False

144.

Given the expression: P=5x3+2x2−5x3+x2+3P=5x^3+2x^2-5x^3+x^2+3 . Consider the truth value of the statement: After simplification, PP is a constant.

a)

True

b)

False

145.

Consider the expression: P=5x3+2x2−5x3+x2+3P=5x^3+2x^2-5x^3+x^2+3 . Evaluate the truth of the statement: PP has a degree of 33 because it contains x3x^3 .

a)

True

b)

False

146.

Consider the expression: P=5x3+2x2−5x3+x2+3P=5x^3+2x^2-5x^3+x^2+3 . Evaluate the truth of the statement: P(x)=3P(x)=3 for all xx .

a)

True

b)

False

147.

Consider the expression: P=5x3+2x2−5x3+x2+3P=5x^3+2x^2-5x^3+x^2+3 . Evaluate the truth of the statement: PP is a polynomial of degree 33 with 11 term.

a)

True

b)

False

148.

Consider the regular pyramid below. Evaluate the truth of the statement: This is a regular quadrilateral pyramid.

a)

True

b)

False

149.

Consider the regular pyramid shown below. Evaluate the truth of the statement: SHSH is the height of the pyramid.

a)

True

b)

False

150.

Consider the following regular pyramid. Evaluate the truth of the statement: SASA is the height of the pyramid.

a)

True

b)

False