Mathematics looks at measurement, relationships, and properties of numbers and groups using numbers and symbols. Important topics in math include arithmetic, algebra, geometry, and calculus.
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Question 1541:

FG is a given straight line and H is a fixed point. The construction marks shown in the diagram indicate the
Options:
A) perpendicular bisector of the line
B) perpendicular bisector of th eline JK
C) perpendicular bisector of the line HI
D) perpendicular from H to the line FG
Show Answer
The correct answer is D .
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Question 1542: The sum of the first n terms of an arithmetic progresssion is 252. If the first term is -16 and the last term is 72, find the number of terms in the series
Options:
A) 6
B) 7
C) 8
D) 9
Show Answer
The correct answer is D .
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Question 1543: Integrate with respect to x
Options:
A) - 2x + k
B) x3 + 2x + k
C) + 2x + k
D) x3 - 2x + k
Show Answer
The correct answer is C .
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Question 1544:
The angle of a sector of acircle, radius 10.5cm, is 48°,Calculate the perimeter of the sector
Options:
A) 8.8cm
B) 25.4cm
C) 25.6cm
D) 29.8cm
Show Answer
The correct answer is D .
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Question 1545: If x > 0, find the range of number x-3, 3x+2,x-1, 4x, 2x-1, x-2, 2x-2, 3x and 3x+1
Options:
A) 3x+3
B) 3x+1
C) 2x+5
D) 2x+1
Show Answer
The correct answer is C .
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Question 1546:
Evaluate Log 8√2
Options:
A) 3.0
B) 4.5
C) 3.5
D) 2.5
Show Answer
The correct answer is C .
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Question 1547: The square base of a pyramid of side 3cm has height 8cm. If the pyramid is cut into two parts by a plane parallel to the base midway between the base and the vertex, the volumes of the two sections are
Options:
A) (21cm3, 3cm3)
B) (24cm3, 3cm3)
C) (24cm3, 21cm3)
D) (72cm3, 9cm3)
E) (63cm3, 9cm3)
Show Answer
The correct answer is B .
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Question 1548:
Convert 0.04945 to two significant figures
Options:
A) 0.040
B) 0.049
C) 0.050
D) 0.49
Show Answer
The correct answer is B .
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Question 1549:
If A = { 1, 2, 3, 4, 5, 6}, B = { 2, 4, 6, 8 }. Find (A B) ⋃ (B A).
Options:
A) {1, 3, 5, 8}
B) {8}
C) {1, 2, 3, 4, 5, 6, 8}
D) {1, 3, 5}
Show Answer
The correct answer is A .
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Question 1550:
The table below shows the frequency of children of age x years in a hospital:
Use the table to answer the question below:
What is the modal age?
Options:
A) 4
B) 5
C) 6
D) 7
Show Answer
The correct answer is B .