Calculate, correct to 2 significant figures, the length of the arc of a circle of radius 3.5cm which subtends an angle of 75° at the centre of the circle. [Take π = 22/7].
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1994
Two ships on the equator are on longitudes 45oW and 45oE respectively. How far are they apart along the equator, correct to 2 significant figures? (Take the radius of earth = 6400km and π = 22/7)
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1994
A cuboid of base 12.5cm by 20cm holds exactly 1 litre of water. What is the height of the cuboid? (1 litre =1000cm3)
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1994
The angle subtended at the centre by a chord of a circle radius 6cm is 120°_ Find the length of the chord.
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1994
Solve the equation log8x - 4log8x = 2
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1994
Factorise: 6x2 + 7xy - 5y2
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1994
Which of the following is a root of the equation x2 +6x = 0?
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1994
Find the quadratic equation whose roots are 3 and 2/3.
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1994
Which of the following is not a factors of 2p2 - 2?
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1994
Which of the following equations can be solved by the points of intersection P and Q of the curve and the line PQ?
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1994
What is the equation of the line PQ?
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1994
In the graph above, the gradient of the curve at the point P is
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1994
For what value of x is the expression x2 + 15x + 50/x - 5 not defined ?
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1994
If 8x- 4 = 6x- 10, find the value of 5x,
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1994
Which of the following is a point on the curve y = x2 -4x + 7?
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1994
Given that 2p - m = 6 and 2p + 4m = 1, find the value of (4p + 3m).
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1994
E = (integers 20), P = (multiples of 3), Q = (multiples of 4), what are the elements of P'∩Q?
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1994
The sum of the 1st and 2nd terms of an A.P. is 4 and the 10th term is 19. Find the sum of the 5th and 6th terms.
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1994
A string is 4.8m. A boy measured it to be 4.95m. Find the percentage error.
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1994
A house bought for N100,000 was later auctioned for N80.000. Find the loss percent.