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- The cost of water is partly constant and partly varies as the number of units consumed. A family that use 10 units pays sh. 320...(Solved)
The cost of water is partly constant and partly varies as the number of units consumed. A family that use 10 units pays sh. 320 and a family that uses 12 units uses sh. 370 for water. Calculate the amount paid by a family that uses 20 units of water in a month.
Date posted: September 30, 2019.
- A student gave the expansion of (x+y)2 as x2+y2. (Solved)
A student gave the expansion of (x+y)2 as x2+y2. Find the percentage error in the expansion by the student if x=2.5 and y=3.0
Date posted: September 30, 2019.
- A house has three rooms each with two 240V, 60W bulbs. If the bulbs are switched on from 7.00p.m to 10.00pm daily.(Solved)
A house has three rooms each with two 240V, 60W bulbs. If the bulbs are switched on from 7.00p.m to 10.00pm daily.
i) Calculate the power consumed per day in kilowatt-hours.
ii) Find the cost per week for lighting these rooms at sh.6.30 per kilowatt hour.
Date posted: September 30, 2019.
- Make x the subject of the formular.(Solved)
Make x the subject of the formular.
![fig4030920191057.png](/questions/uploads/fig4030920191057.png)
Date posted: September 30, 2019.
- (a) What is the hexadecimal equivalent of 7478(b) Use one’s compliment to solve 610(Solved)
(a) What is the hexadecimal equivalent of 7478
(b) Use one’s compliment to solve 610
Date posted: September 30, 2019.
- Use tables of logarithms to evaluate;(Solved)
Use tables of logarithms to evaluate;
![fig3830920191053.png](/questions/uploads/fig3830920191053.png)
Date posted: September 30, 2019.
- Uranium -234 undergoes a radioactive decay represented by the equation shown below.(Solved)
Uranium -234 undergoes a radioactive decay represented by the equation shown below.
Find the value of a and b
Date posted: September 30, 2019.
- Evaluate ;(Solved)
Evaluate ;
![fig3630920191050.png](/questions/uploads/fig3630920191050.png)
Date posted: September 30, 2019.
- Given that the wavelength of a certain electromagnetic wave is 7500cm, determine its frequency. (Take the speed of light in a vacuum as 3.0 x...(Solved)
Given that the wavelength of a certain electromagnetic wave is 7500cm, determine its frequency. (Take the speed of light in a vacuum as 3.0 x 108m/s)
Date posted: September 30, 2019.
- The figure below shows an image I formed by an object placed in front of a convex mirror. C and F are the centre of...(Solved)
The figure below shows an image I formed by an object placed in front of a convex mirror. C and F are the centre of curvature and principal focus of the mirror respectively. Using appropriate rays locate the object position.
Date posted: September 30, 2019.
- Explain the meaning of the following terms as used in computer programming.
i) Syntax
ii) Semantics(Solved)
Explain the meaning of the following terms as used in computer programming.
i) Syntax
ii) Semantics
Date posted: September 30, 2019.
- What is the color of each of the following breeds of livestock?
a) Wessex saddle backs.
b) Toggenburg
(Solved)
What is the color of each of the following breeds of livestock?
a) Wessex saddle backs.
b) Toggenburg
Date posted: September 30, 2019.
- Differentiate between the following breeds of livestock.
i) New Zealand white and Californian white.
ii) Large white and landrace(Solved)
Differentiate between the following breeds of livestock.
i) New Zealand white and Californian white.
ii) Large white and landrace
Date posted: September 30, 2019.
- The figure below shows part of an electric circuit. The charge stored in the 9µF capacitor is 1.4 micro coulombs(Solved)
The figure below shows part of an electric circuit. The charge stored in the 9μF capacitor is 1.4 micro coulombs
Determine the p.d across the 5μF capacitor.
Date posted: September 30, 2019.
- Discuss the importance of livestock to a Kenyan farmer.(Solved)
Discuss the importance of livestock to a Kenyan farmer.
Date posted: September 30, 2019.
- List six different types of drainage.(Solved)
List six different types of drainage.
Date posted: September 30, 2019.
- The figure below shows water waves travelling from region A through B to C in a ripple tank.(Solved)
The figure below shows water waves travelling from region A through B to C in a ripple tank.
On the same diagram, complete the figure to show incident waves at region A and after crossing the boundary to C.
Date posted: September 30, 2019.
- Give reasons why the burning of Bushes as a methods of land clearing should be discouraged.(Solved)
Give reasons why the burning of Bushes as a methods of land clearing should be discouraged.
Date posted: September 30, 2019.
- Place the following tools in their respective categories and state their uses.(Solved)
Place the following tools in their respective categories and state their uses.
a) Panga
b) Shovel
c) Pick axe
d) Garden line
e) Wheelbarrow
f) Sprayer
g) Ripsaw
h) Tape measure
i) Scraper
j) Marking gauge
Date posted: September 30, 2019.
- State two effect of HIV/AIDS on agriculture(Solved)
State two effect of HIV/AIDS on agriculture.
Date posted: September 30, 2019.
- State TWO circumstances under which interviews may be used as a method of gathering information(Solved)
State TWO circumstances under which interviews may be used as a method of gathering information
Date posted: September 30, 2019.
- A coin is placed at the bottom of a beaker filled with water to a height of 2.4cm as shown in the figure below. Given...(Solved)
A coin is placed at the bottom of a beaker filled with water to a height of 2.4cm as shown in the figure below. Given that the refractive index of water is 1.33, determine the apparent depth of the coin.
Date posted: September 30, 2019.
- Give four reasons why Agriculture considered important in Kenya’s economy.(Solved)
Give four reasons why Agriculture considered important in Kenya’s economy.
Date posted: September 30, 2019.
- Define an information system.(Solved)
Define an information system.
Date posted: September 30, 2019.
- A farmer with one hectare of land requires 40kg of n in his farm. He applied CAN which costs shs 35 per kg. CAN contain...(Solved)
A farmer with one hectare of land requires 40kg of n in his farm. He applied CAN which costs shs 35 per kg. CAN contain 20kg N.
(a) Calculate the amount of C.A.N the farmer requires
(b) How much will a farmer with one and a half hectares spend to apply in his farm?
(c) Name two types of compound fertilizers used by farmers
Date posted: September 30, 2019.
- Most computerized security systems make use of biometric analysis. Name Physical features of human being that can be considered for this analysis.(Solved)
Most computerized security systems make use of biometric analysis. Name Physical features of human being that can be considered for this analysis.
Date posted: September 30, 2019.
- A certain car battery is rated 30Ah. Determine the amount of current it can supply in 10 minutes.(Solved)
A certain car battery is rated 30Ah. Determine the amount of current it can supply in 10 minutes.
Date posted: September 30, 2019.
- A soft iron bar AB is placed in a magnetic field of a horse shoe magnet as shown below.(Solved)
A soft iron bar AB is placed in a magnetic field of a horse shoe magnet as shown below.
What are the polarities of A and B.
Date posted: September 30, 2019.
- State the lacking mineral in the following disorders.
(i) Anaemia in piglets
( ii) Osteomalacia
(iii)Milk fever
(iv)Swayback in lambs(Solved)
State the lacking mineral in the following disorders.
(i) Anaemia in piglets
( ii) Osteomalacia
(iii)Milk fever
(iv)Swayback in lambs
Date posted: September 30, 2019.
- State two differences between sound waves and microwaves.(Solved)
State two differences between sound waves and microwaves.
Date posted: September 30, 2019.