- 4x2- 10x + 4y2+ 12y-1 = 0 represents a circle centre C (a, b) and of radius K. Find the values of a, b and...(Solved)
4x2- 10x + 4y2+ 12y-1 = 0 represents a circle centre C (a, b) and of radius K. Find the values of a, b and K.
Date posted: April 29, 2019. Answers (1)
- Solve for x given that;(Solved)
Solve for x given that;
Date posted: April 29, 2019. Answers (1)
- A merchant blends 350kg of tea costing Sh. 84 kg with 140kg of tea costing Sh. 105 per kg. At what price must he sell
the...(Solved)
A merchant blends 350kg of tea costing Sh. 84 kg with 140kg of tea costing Sh. 105 per kg. At what price must he sell
the mixture to gain 25%
Date posted: April 29, 2019. Answers (1)
- Given that x = 31.01, y = 12.9 and w = 0.0023. Calculate the percentage error of ??/xw,give your answer to 4 dp.(Solved)
Given that x = 31.01, y = 12.9 and w = 0.0023. Calculate the percentage error of 𝑦/xw,give your answer to 4 dp.
Date posted: April 29, 2019. Answers (1)
- Peter operates a printing firm and the cost of printing a book is partly constant and partly varies as the number as
pages. If a book...(Solved)
Peter operates a printing firm and the cost of printing a book is partly constant and partly varies as the number as
pages. If a book has 200 pages, the cost in sh 400 and if it has 100 pages, the cost is sh 240. Find the cost of printing a
book with 400 pages.
Date posted: April 29, 2019. Answers (1)
- The first, the third and the seventh term of an increasing arithmetic progression are three consecutive terms of a geometric progression. If the first term...(Solved)
The first, the third and the seventh term of an increasing arithmetic progression are three consecutive terms of a geometric progression. If the first term of the arithmetic progression is 10, find the common difference of the arithmetic progression
Date posted: April 29, 2019. Answers (1)
- Two towns A and B are 200m apart. From the top of A, the angle of elevation of the top of B is 150. From...(Solved)
Two towns A and B are 200m apart. From the top of A, the angle of elevation of the top of B is 150. From the top of B,
the angle of depression of the bottom of A is 400. Find the height of A.
Date posted: April 29, 2019. Answers (1)
- The figure below shows a circle center O, radius 10 cm. The chord PQ = 16cm. Calculate the area of the unshaded region.(Solved)
The figure below shows a circle center O, radius 10 cm. The chord PQ = 16cm. Calculate the area of the unshaded region.
Date posted: April 29, 2019. Answers (1)
- Consider points A (500N, 300E) and B (500N, 1500W) (Take ?? = 22/7) and radius of the earth R = 6370 km. Find:
(Solved)
Consider points A (500N, 300E) and B (500N, 1500W) (Take 𝜋 = 22⁄7) and radius of the earth R = 6370 km. Find:
(a) The distance between A and B along a parallel of latitude in:
(i) Kilometres (km)
(ii) Nautical miles (nm)
(b) The shortest distance from A to B in nautical miles.
(c) An aircraft takes 54 hours to fly between the two towns A and B along the great circle. Calculate its speed in knots
correct to 2 significant figures.
Date posted: April 29, 2019. Answers (1)
- If x is a positive integer find all the integral values of x given that:(Solved)
If x is a positive integer find all the integral values of x given that:
Date posted: April 29, 2019. Answers (1)
- The area of a rhombus is 60cm2. Given that one of its diagonal is 15cm long. Calculate the perimeter of the rhombus.(Solved)
The area of a rhombus is 60cm2. Given that one of its diagonal is 15cm long. Calculate the perimeter of the rhombus.
Date posted: April 29, 2019. Answers (1)
- If tan X = 4/3 , find the value of sin2X + cos X without using tables or calculator.(Solved)
If tan X = 4/3 , find the value of sin2X + cos X without using tables or calculator.
Date posted: April 29, 2019. Answers (1)
- Kamau salary increased from Ksh 16,800 to 18,00 in the month of April. State the ratio in which it changed. What was
the percentage change in...(Solved)
Kamau salary increased from Ksh 16,800 to 18,00 in the month of April. State the ratio in which it changed. What was
the percentage change in his salary? Leave you percentage answer to 4. s. figures.
Date posted: April 29, 2019. Answers (1)
- Make a the subject of the formula:(Solved)
Make a the subject of the formula:
Date posted: April 29, 2019. Answers (1)
- Find the equation of a straight line which is equidistant from the points A (2, 3) and B (6, 1). Express your answer in
the form...(Solved)
Find the equation of a straight line which is equidistant from the points A (2, 3) and B (6, 1). Express your answer in
the form x/a + y/b =1 where a and b are constant.
Date posted: April 29, 2019. Answers (1)
- Given that AB and CD are parallel, find the value of K and hence evaluate |CD|(Solved)
Given that AB and CD are parallel, find the value of K and hence evaluate |CD|
Date posted: April 29, 2019. Answers (1)
- Determine the equation of the normal to the curve y = 3x2 – 4x + 1 at the point (2, 5).(Solved)
Determine the equation of the normal to the curve y = 3x2 – 4x + 1 at the point (2, 5).
Date posted: April 29, 2019. Answers (1)
- Solve the equation shown below:(Solved)
Solve the equation:
Date posted: April 29, 2019. Answers (1)
- Solve for y in the equation 8(2y – 1) x 32y = 16(y + 1).(Solved)
Solve for y in the equation
8(2y – 1) x 32y = 16(y + 1).
Date posted: April 29, 2019. Answers (1)
- A tourist arrived in Kenya with US Dollars 3000 which he exchanged into Kenya shillings. He spent Ksh. 75000 on hotel accommodation and Ksh.42500 on...(Solved)
A tourist arrived in Kenya with US Dollars 3000 which he exchanged into Kenya shillings. He spent Ksh. 75000 on hotel accommodation and Ksh.42500 on travel and other expenses. He changed the remaining money into sterling pounds. Calculate how much money in sterling pounds that he remained with using the following rates. (Leave your answer to the nearest 1£)
Date posted: April 29, 2019. Answers (1)