- A rectangular tank has a hole in it such that 11cm3 of water leaks out every 5 seconds.(Solved)
A rectangular tank has a hole in it such that 11cm3 of water leaks out every 5 seconds. Using π as 3.142. Calculate:-
(i) The capacity of the water lost from the tank every hour.
(ii) The time it takes to till a cylindrical tank of radius 30cm and height 30cm into which the leaking water drains; in hours to 4 significant figures.
Date posted: August 20, 2019. Answers (1)
- A tank holding 1m3 of water is filled in 10 minutes by a circular pipe of diameter 2cm. Find the speed of water in the pipe.(Solved)
A tank holding 1m3 of water is filled in 10 minutes by a circular pipe of diameter 2cm.Find the speed of water in the pipe.
Date posted: August 20, 2019. Answers (1)
- Simplify the expression:(Solved)
Simplify the expression:
Date posted: August 20, 2019. Answers (1)
- Solve the equation 8x2 + 2x -3 = 0 hence solve the equation 8cos2y + 2cosy – 3 = 0 for the range 00 0(Solved)
Solve the equation 8x2 + 2x -3 = 0 hence solve the equation 8cos2y + 2cosy – 3 = 0 for the range 00 0.
Date posted: August 20, 2019. Answers (1)
- The figure below represents a plot of land ABCD such that AB=85m, BC=75m, CD=60m, DA=50m and angle ACB = 900.(Solved)
The figure below represents a plot of land ABCD such that AB=85m, BC=75m, CD=60m, DA=50m and angle ACB = 900. (Not drawn to scale).
Determine the area of the plot, in hectares, correct to two decimal places.
Date posted: August 20, 2019. Answers (1)
- A minibus covered a distance of 200km at an average speed of 100km/hr.(Solved)
A minibus covered a distance of 200km at an average speed of 100km/hr. It traveled at a speed of 80km/hr for 3/5 of its journey. At what speed did it travel the remaining part of the journey.
Date posted: August 20, 2019. Answers (1)
- A test-tube consist of a cylinder and a hemisphere of the same radius; 282 cm3 of water is required to fill the whole tube...(Solved)
A test-tube consist of a cylinder and a hemisphere of the same radius; 282 cm3 of water is required to fill the whole tube and 262cm3 is required to fill it at a level of 1cm3 below the top of the tube. Find the radius of the tube and the length of the cylindrical part.
Date posted: August 20, 2019. Answers (1)
- In the triangle, AB = 8.5cm, AC = 10cm and ABC = BDC = 900(Solved)
In the triangle, AB = 8.5cm, AC = 10cm and ABC = BDC = 900.
Calculate:
(i) The length of BC.
(ii) The length of BD.
Date posted: August 20, 2019. Answers (1)
- Evaluate:(Solved)
Evaluate:
Date posted: August 20, 2019. Answers (1)
- The figure below shows a frustrum PQRSTUVW of a right pyramid. PQ = 20cm, QR = 15cm,UV = 10cm, UT = 7.5cm and PU =...(Solved)
The figure below shows a frustum PQRSTUVW of a right pyramid. PQ = 20cm, QR = 15cm,UV = 10cm, UT = 7.5cm and PU = QV = RW = ST = 12cm.
Leave all your answer to 4 s.f.
(a) Find the altitude of the pyramid from which the frustum was cut.
(b) Find the angle between
(i) PW and base PQRS
(ii) PQVU and the base PQRS
Date posted: August 20, 2019. Answers (1)
- Solve the pair of simultaneous equations using elimination method.
4x+9y=5
3x+3y=2(Solved)
Solve the pair of simultaneous equations using elimination method.
4x+9y=5
3x+3y=2
Date posted: August 20, 2019. Answers (1)
- Express the number 935 and 19845 as a product of their prime factors hence evaluate the following expression leaving your answer in prime factor form.(Solved)
Express the number 935 and 19845 as a product of their prime factors hence evaluate the following expression
leaving your answer in prime factor form.
Date posted: August 20, 2019. Answers (1)
- Given 2.421=2a/b. determine the values of a and b.(Solved)
Given 2.421=2a/b. determine the values of a and b.
Date posted: August 20, 2019. Answers (1)
- Find the length of AC in the figure below.(Solved)
Find the length of AC in the figure below.
Date posted: August 20, 2019. Answers (1)
- A circle of radius 4.9cm fits exactly inside a square. Find the area of the space between the circle and the square.(Solved)
A circle of radius 4.9cm fits exactly inside a square. Find the area of the space between the circle and the square.
Date posted: August 20, 2019. Answers (1)
- Express y in terms of x given that:-
10x2 - 9xy + 2y2 = 0(Solved)
Express y in terms of x given that:-
10x2 - 9xy + 2y2 = 0
Date posted: August 20, 2019. Answers (1)
- The distance from town A to town B is 360km. A bus left town A and traveled towards town B at an average speed of...(Solved)
The distance from town A to town B is 360km. A bus left town A and traveled towards town B at an average speed of 60km/h. After 1½ hours, a car left town A and traveled along the same road at an average speed of 100km/h.
(a) Determine:
(i) The distance of the bus from town A when the car took off.
(ii) The distance the car traveled to catch up with the bus.
(b) The distance from P to Q is 160km. If an express train was 16km/h slower it would take 20 minutes longer on the journey. Find the average speed of the express train.
Date posted: August 20, 2019. Answers (1)
- Use mathematical tables to evaluate(Solved)
Use mathematical tables to evaluate
Date posted: August 20, 2019. Answers (1)
- A transformation represented by the matrix(Solved)
A transformation represented by the matrix 
maps the points A(0, 0), B(2, 0), C(2, 3) and D(0, 3) of the quad ABCD onto A¹B¹C¹D¹ respectively.
(a) Draw the quadrilateral ABCD and its image A¹B¹C¹D¹.
(b) Hence or otherwise determine the area of A¹B¹C¹D¹.
(c) Another transformation 
maps A¹B¹C¹D¹ onto A¹¹B¹¹C¹¹D¹¹. Draw the image A¹¹B¹¹C¹¹D¹¹.
(d) Determine the single matrix which maps A¹¹B¹¹C¹¹D¹¹ back to ABCD.
Date posted: August 20, 2019. Answers (1)
- In the given figure, 0, 0 and 0.(Solved)
In the given figure, 0, 0 and 0. BAF is a straight line.
Giving reasons where necessary, calculate the size of:-
(i) (ii) (iii) (iv)
Date posted: August 20, 2019. Answers (1)