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 791:
| Age in years | 7 | 8 | 9 | 10 | 11 |
| No of pupils | 4 | 13 | 30 | 44 | 9 |
The table above shows the number of pupils in a class with respect to their ages. If a pie chart is constructed to represent the age, the angle corresponding to 8 years old is
Options:
A) 48.6°
B) 56.3°
C) 46.8°
D) 13°
Show Answer
The correct answer is C .
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Question 792: A straight line makes an angle of 30° with the positive x-axis and cuts the y-axis at y = 5. Find the equation of the straight line.
Options:
A) y = (x/10) + 5
B) y = x + 5
C) √3y = - x + 5√3
D) √3y = x + 5√3
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The correct answer is D .
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Question 793:
Two numbers are respectively 35% and 80% more than a third number. The ratio of the two numbers is
Options:
A) 7 : 16
B) 3 : 4
C) 16 : 7
D) 4 : 3
Show Answer
The correct answer is B .
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Question 794: Solve the equation
Options:
A) x = 1.75 or − 0.15
B) x = 2.12 or − 0.79
C) x = 1.5 or − 0.34
D) x = 2.35 or −1.23
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The correct answer is B .
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Question 795:
Find the value of y if
Options:
A) 4
B) 2
C) 5
D) 3
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The correct answer is C .
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Question 796: If | 2 3 | = | 4 1 |. find the value of y. 7
Options:
A) -6
B) 6
C) -12
D) 12
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The correct answer is A .
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Question 797: Let f(x) = 2x + 4 and g(x) = 6x + 7 here g(x) > 0. Solve the inequality < 1.
Options:
A) x < -
B) x > -
C) x > -
D) x > - 12
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The correct answer is C .
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Question 798: Solve the equations
m2 + n2 = 29
m + n = 7
Options:
A) (2, 3) and ( 3, 5)
B) (2, 5) and (5, 2)
C) (5, 2) and ( 5, 3)
D) (5, 3) and (3, 5)
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The correct answer is B .
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Question 799:
From the table above, if the pass mark is 5, how many students failed the test?
Options:
A) 6
B) 2
C) 9
D) 7
Show Answer
The correct answer is C .
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Question 800: The difference between the length and width of a rectangle is 6cm and the area is 135cm. What is the length?
Options:
A) 25cm
B) 18cm
C) 15cm
D) 24cm
E) 27cm
Show Answer
The correct answer is C .