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 2621: If Log102 = 0.3010 and Log103 = 0.4771, evaluate Log104.5
Options:
A) 0.9542
B) 0.6532
C) 0.4771
D) 0.3010
Show Answer
The correct answer is B .
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Question 2622:
What is the rate of change of the volume Vof a hemisphere with respect to its radius r when r = 2?
Options:
A) 8π
B) 16π
C) 2π
D) 4π
Show Answer
The correct answer is A .
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Question 2623:

In the figure, PS = RS = QS and QRS = 50o. Find QPR
Options:
A) 25o
B) 40o
C) 50o
D) 65o
Show Answer
The correct answer is A .
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Question 2624: Find r, if 6r78 = 5119
Options:
A) 3
B) 2
C) 6
D) 5
Show Answer
The correct answer is A .
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Question 2625: Twenty girls and y boys sat on an examination. The mean marks obtained by the girls and boys were 52 and 57 respectively. if the total score for both girls and boys was 2950, find y.
Options:
A) 51
B) 48
C) 30
D) 25
E) 18
Show Answer
The correct answer is C .
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Question 2626: If f(x - 4) = x2 + 2x + 3, Find, f(2)
Options:
A) 6
B) 11
C) 27
D) 51
Show Answer
The correct answer is D .
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Question 2627: If x varies inversely as y, and y varies directly as the square root of z, and z varies directly write down in words how x varies with w
Options:
A) x varies inversely as w2
B) x varies directly as w2
C) x varies directly as w
D) x varies inversely as w
E) x varies directly as square root of w
Show Answer
The correct answer is B .
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Question 2628: If f(x - 2) = 4x2 + x + 7, find f(1)
Options:
A) 12
B) 27
C) 7
D) 46
E) 17
Show Answer
The correct answer is D .
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Question 2629: If ₦560.70 is shared in the ratio 7 : 2 : 1, what is the smallest share?
Options:
A) ₦392.49
B) ₦56.70
C) ₦113.40
D) ₦112.14
E) ₦56.07
Show Answer
The correct answer is E .
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Question 2630: x varies directly as y and inversely as z. when x = 5, y = 2 and z = 1. What is the value of x when y = 5 and z = 2?
Options:
A) 2.5
B) 5
C) 6.25
D) 6.52
E) 7.5
Show Answer
The correct answer is C .