A flagpole is placed at the top of a tower. The angles of elevation of the bottom and top of the flagpole from a point on the ground 10m away are 40° and 50° respectively. Find the length of the flagpole.
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2005
Find the value of 2a - b if a + b = 8 and 4a - b = 22
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2005
What is the positive difference between the squares of 2.5 and 2.1 to 1 significant figures?
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2005
If A(I,2,3,...,10) ; B = (-5,-4,.....,-1) ; C = (-1, 0, 1, 2,....5) List all the elements in (B ∪ C) ∩ A
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2005
A car dealer sells a car and makes a profit of 15%. If the car costs N320,000.00, how much did he sell the car?
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2005
A bag contains 4 blue and 8 red identical balls. If two balls are picked at random with replacement, what is the probability of picking two balls of different colours?
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2005
Evaluate log 18 + log6 - log16\(^{\frac{1}{2}}\)
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2005
For what value(s) of x is the expression (x2 + 15x + 50) ÷ (x - 5) not defined
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2005
In Δ ABC, A = 60°, C = 90° and AC = 12m. Find the Length of the hypotenuse.
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2005
Find the absolute mean deviation of the sample 10, 12, 14, 11, 13.
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2005
Simplify (6 - x - x2) ÷ (x2 - 4)
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2005
Mohammed is 8 years older than Joy now. In five years’ time he will be twice as old as Joy. How old is Joy now?
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2005
The diagonals of a rhombus are 6cm and 8cm. Find the area of the rhombus.
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2005
If (x - a) is a factor of bx - ax + x2, find the other factor.