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IN the diagram, |LN| = 4cm, LNM = 90o and tan y = 2/3. What is the area of the ∆LMN?
A24cm2
B12cm2
C10cm2
D6cm2
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Question 462
waec2007
A sector of a circle of radius 14cm containing an angle 60o is folded to form a cone. Calculate the radius of the base of the cone.
A\(5\frac{1}{2}cm\)
B\(4\frac{2}{3}cm\)
C\(3\frac{1}{2}cm\)
D\(2\frac{1}{3}cm\)
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Question 463
waec2007
A chord of length 6cm is drawn in a circle of radius 5cm. Find the distance of the chord from the center of the circle
A2.5cm
B3.0cm
C3.5cm
D4.0cm
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Question 464
waec2007
The area of a square field is 110.25m2. Find the cost of fencing it round at N75.00 per meter square
AN1,575.00
BN3,150.00
CN4,734.30
DN8,268.75
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Question 465
waec2007
If \(8^{x+1}=\frac{1}{4}\), find x
A\(-\frac{5}{3}\)
B-1
C\(-\frac{1}{3}\)
D\(\frac{1}{3}\)
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Question 466
waec2007
Solve the simultaneous equation: x+y=2 and 3x-2y=1
Ax=2 and y=1
Bx=1 and y=1
Cx=1 and y=2
Dx=-1 and y=1
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Question 467
waec2007
If x =3, y = 2 and z = 4 what is the value of \(3x^{2}-2y+z\)
A17
B27
C35
D71
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Question 468
waec2007
For what value of x is the expression \(\frac{2x-1}{x+3}\)not defined?
A3
B2
C1/2
D-3
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Question 469
waec2007
I am x years old and my brother is 3 years older. How old was my brother last year
A(x - 4) years
B(x + 2) years
C(3x - 1) years
D(3x + 1) years
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Question 470
waec2007
N140,000 is shared between ABU, Kayode and Uche. Abu has twice as much as Kayode, and Kayode has twice as much as Uche. What is Kayode's share?
AN80,000
BN40,000
CN20,000
DN10,000
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Question 471
waec2007
Simplify\(\frac{3x^{3}}{(3x)^{3}}\)
A1
B\(\frac{1}{3}\)
C\(\frac{1}{9}\)
D\(\frac{1}{27}\)
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Question 472
waec2007
Which of the following is true for the set \(P = \{-3.2\leq x< 5\}\) where x is an integer
Aleast value of x is -3.2
Bleast value of x is -3
Cgreatest value of x is 4.9
Dgreatest value of x is 5
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Question 473
waec2007
Simplify \(3\sqrt{45}-12\sqrt{5}+16\sqrt{20}\)leaving your answer in surd form
A\(29\sqrt{5}\)
B\(14\sqrt{15}\)
C\(12\sqrt{15}\)
D\(11\sqrt{5}\)
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Question 474
waec2007
If \(p\propto \frac{1}{q}\), which of the following is true?
A\(\propto p^{2}\)
B\(p\propto \frac{1}{q^{2}}\)
C\(q\propto \sqrt{p}\)
D\(q\propto \frac{1}{p}\)
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Question 475
waec2007
Simplify \((0.3\times 10^{5})\div (0.4\times 10^{7})\)leaving your answer in standard form
A\(7.5\times 10^{-4}\)
B\(7.5\times 10^{-3}\)
C\(7.5\times 10^{-2}\)
D\(7.5\times 10^{-1}\)
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Question 476
waec2007
Find the LCM of \(2^{3}\times 3\times 5^{2}, 2\times 3^{2}\times 5 \hspace{1mm}and \hspace{1mm}2^{2}\times 3^{2}\times 5\)
A\(2^{2}\times 3^{3}\times 5^{2}\)
B\(2^{3}\times 3^{23}\times 5\)
C\(2^{2}\times 3^{2}\times 5^{2}\)
D\(2^{3}\times 3^{3}\times 5^{2}\)
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Question 477
waec2007
Evaluate \((111_{two})^2\) and leave your answer in base 2
A\(111001_{two}\)
B\(110001_{two}\)
C\(101001_{two}\)
D\(10010_{two}\)
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Question 478
waec2006
In the diagram |XY| = 12cm, |XZ| = 9cm, |ZN| = 3cm and ZY||NM, calculate |MY|
A3cm
B4cm
C5cm
D6cm
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Question 479
waec2006
In the diagram what is x + y in terms of z?
A180o - z
B180o + z
Cz - 180o
Dz
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Question 480
waec2006
The diagram shows an arc MN of a circle, centre O, with 10cm. If < MON = 72o. calculate the length of the arc, correct to three significant figures. [Take \(\pi = \frac{22}{7}\)]
