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The diagram is a polygon. Find the largest of its interior angles
A300o
B100o
C120o
D150o
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Question 2
waec2012
The graph is that of y = 2x2 - 5x - 3. For what value of x will y be negative? For what value of x will y be negative?
A-\(\frac{1}{2} \leq x\) < 3
B-\(\frac{1}{2} < x \leq 3\)
C-\(\frac{1}{2} < x < 3\)
D-\(\frac{1}{2} \leq x \leq 3\)
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Question 3
waec2012
In the diagram, |SR| = |QR|. < SRP = 65o and < RPQ = 48o, find < PRQ
A65o
B45o
C25o
D19o
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Question 4
waec2012
The diagram is a circle of radius |QR| = 4cm. \(\bar{R}\) is a tangent to the circle at R. If TPO = 120o, find |PQ|.
A2.32cm
B1.84cm
C0.62cm
D0.26cm
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Question 5
waec2012
The diagram is a circle with centre P. PRST are points on the circle. Find the value of < PRS
A144o
B72o
C40o
D36o
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Question 6
waec2012
In the diagram, MN//PO, < PMN = 112º, < PNO = 129º, < NOP = 37º and < MPN = yo. Find the value of y
A51o
B54o
C56o
D68o
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Question 7
waec2012
The graph is that of y = 2x2 - 5x - 3. For what value of x will y be negative? What is the gradient of y = 2x2 - 5x - 3 at the point x = 4?
A11.1
B10.5
C10.3
D9.9
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Question 8
waec2012
The bar chart shows the frequency distribution of marks scored by students in a class test. What is the median of the distribution?
A2
B4
C6
D8
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Question 9
waec2012
The bar chart shows the frequency distribution of marks scored by students in a class test. Calculate the mean of the distribution.
A6.0
B3.0
C2.4
D1.8
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Question 10
waec2012
The bar chart shows the frequency distribution of marks scored by students in a class test. How many students are in the class?
A10
B24
C25
D30
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Question 11
waec2012
The position of three ships P,Q and R at sea are illustrated in the diagram. The arrows indicated the North direction. The bearing of Q from P is 050o and < PQR = 72o. Calculate the bearing of R and Q
A155o
B80o
C158o
D91o
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Question 12
waec2012
Is the diagram, MN, PQ and RS are three intersecting straight lines. Which of the following statements is/are true? i. t = y ii. x + y + z + m = 180o iii. x + m + n = 180o iv. x + n = m + z
Ai and iv
Bii
Ciii
Div
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Question 13
waec2012
In the diagram, MQ//RS, < TUV = 70o and < RLV = 30o. Find the value of x
A150o
B110o
C100o
D95o
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Question 14
waec2012
The diagram is a circle centre O. If < SPR = 2m and < SQR = n, express m in terms of n
Am = \(\frac{n}{2}\)
Bm = 2n
Cm = n - 2
Dm = n + 2
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Question 15
waec2012
In the diagram, O is a circle centre of the circle PQRS and < PSR = 86o. If < PQR = xo, find x
A108o
B172o
C130o
D50o
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Question 16
waec2012
In the diagram, |QR| = 10m, |SR| = 8m
< QPS = 30o, < QRP = 90o and |PS| = x, Find x
A1.32m
B6.32m
C9.32m
D17.32
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Question 17
waec2012
If x and y are variables and k is a constant, which of the following describes an inverse relationship between x and y?
Ay = kx
By = \(\frac{k}{x}\)
Cy = k\(\sqrt{x}\)
Dy = x + k
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Question 18
waec2012
If x and y are variables and k is a constant, which of the following describes an inverse relationship between x and y?
Ay = kx
By = \(\frac{k}{x}\)
Cy = k\(\sqrt{x}\)
Dy = x + k
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Question 19
waec2012
Factorise completely: 32x2y - 48x3y3
A16x2y(2 - 3xy2)
B8xy(4x - 6x2y2)
C8x2y(4 - 6xy2)
D16xy(2x - 3x2y2)
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Question 20
waec2012
A side and a diagonal of a rhombus are 10cm and 12cm respectively, Find its area
