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 401: In the diagram, find the size of the angle marked ao
Options:
A) 60o
B) 80o
C) 120o
D) 160o
Show Answer
The correct answer is B .
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Question 402: A polynomial in x whose zeros are -2, -1 and 3 is
Options:
A) x3 - 7x + 6
B) x3 + 7x - 6
C) x3 + 7x + 6
D) x3 - 7x - 6
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The correct answer is D .
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Question 403: Find P if = +
Options:
A)
B)
C)
D)
Show Answer
The correct answer is A .
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Question 404: If the gradient of the curve y = 2kx2 + x + 1 at x = 1 is 9, find k.
Options:
A) 4
B) 3
C) 2
D) 1
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The correct answer is C .
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Question 405:
The solution set of the shaded area above is
Options:
A) y + x 4, y x
B) y 0, y x and y + x 4
C) y x, y + x 4 and y 0
D) y x, y + x 4
Show Answer
The correct answer is C .
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Question 406: Make y the subject of the formula Z = x2 +
Options:
A) y =
B) y =
C) y =
D) y =
Show Answer
The correct answer is D .
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Question 407: If x is jointly proportional to the cube of y and the fourth power of z. In what ratio is x increased or decreased when y is halved and z is doubled?
Options:
A) 4:1 increase
B) 2:1 increase
C) 1:1 no change
D) 1:4 decrease
E) 3:4 decrease
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The correct answer is B .
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Question 408: A man and wife went to buy an article costing ₦400. The woman had 10% of the cost and the man 40% of the remainder. How much did they have altogether?
Options:
A) ₦216
B) ₦200
C) ₦184
D) ₦144
E) ₦100
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The correct answer is C .
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Question 409: The size of a quantity first doubles and then increases by a further 16%. After a short time its size decreases by 16%. What is the net increases in size of the quantity?
Options:
A)
B)
C) 200%
D) +100%
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The correct answer is C .
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Question 410:
A binary operation on the set of real numbers excluding -1 is such that sor all m, n R, m n = m + n + mn. Find the identity element of the operation.
Options:
A) 1
B) -
C) -1
D) 0
Show Answer
The correct answer is D .