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- Name the following organic compounds.(Solved)
Name the following organic compounds.
i). CH3CH2CH2OH
ii). CH3CH2COOH
iii). CH3CH2COOC2H5
Date posted: August 19, 2019.
- Three similar 21 inch television sets and five similar 17 inch television cost Ksh.129,250.(Solved)
Three similar 21 inch television sets and five similar 17 inch television cost Ksh.129,250. The difference between the cost of two 21 inch television sets and four 17 inch television sets is Ksh.22,000. Calculate the price of a 21- inch television set and that of 17-inch television set.
Date posted: August 19, 2019.
- In the figure below PQRS is a cyclic quadrilateral. Given that TPX is a tangent at P and O is the centre of the circle....(Solved)
In the figure below PQRS is a cyclic quadrilateral. Given that TPX is a tangent at P and O is the centre of the circle. RQX is a straight line with angle RPQ = 500, and angle PRS = 250.
Giving reasons in each case, find:
a) Angle PRQ
b) Angle PSR.
c) Angle PXQ
d) Angle TPS
e) Angle POS
Date posted: August 19, 2019.
- Study the flow chart below and answer the questions that follow.(Solved)
Study the flow chart below and answer the questions that follow.
a) Explain using 3 equations how Sulphur (IV) oxide is obtained in contact process.
b) State three identities of solid K.
c) Name two impurities present in the gaseous mixture and suggest how they can be eliminated.
d) Identify the catalyst used in the catalytic converter and state two reasons why it is preferred.
e) Explain why Sulphur (VI) oxide is not absorbed directly into water.
f) Write balanced chemical equations for the reactions taking place at:
i). The catalytic converter
ii). Absorption tower.
iii). Diluter
Date posted: August 19, 2019.
- A cinema theatre has 200 seats. Tickets prices are Ksh 500 for adult and Ksh 250 for a child.
a) One evening 80% of the seats...(Solved)
A cinema theatre has 200 seats. Tickets prices are Ksh 500 for adult and Ksh 250 for a child.
a) One evening 80% of the seats in the cinema are occupied. Twenty of the people present are children. Calculate the total amount of money obtained from the sale of tickets that evening.
b) On another evening x children are present and all the seat are occupied. If the money obtained from the sale of tickets is Ksh 90500. Calculate the value of x.
c) The money obtained from sale of tickets in a given week is used to pay for maintenance and expenses. The balance is the profit for the week. If the ratio of profit to expenses is 3:4 and that of expenses to maintenance is 5:6 and given that Kshs. 1062000 was collected in a given week, calculate the profit for the week.
Date posted: August 19, 2019.
- After how long will a certain amount of money deposited at 12% p.a and compounded semi-annually take to double itself?(Solved)
After how long will a certain amount of money deposited at 12% p.a and compounded semi-annually take to double itself?
Date posted: August 19, 2019.
- The three sides of a right angled triangle are (x-1), (2x+8) and the hypotenuse (3x+1), find the dimensions of the triangle.(Solved)
The three sides of a right angled triangle are (x-1), (2x+8) and the hypotenuse (3x+1), find the dimensions of the triangle.
Date posted: August 19, 2019.
- Under a transformation matrix given below,a figure area 10cm2 is mapped onto a figure with an area of 20cm2. Find the matrix.(Solved)
Under a transformation matrix given below,a figure area 10cm2 is mapped onto a figure with an area of 20cm2. Find the matrix.
Date posted: August 19, 2019.
- Read the following passage and then answer the question that follow .(Solved)
Read the following passage and then answer the question that follow.
Africa are undoubtedly a very enduring race and have the capacity to utilize the available natural resources for the betterment of life. The biggest challenge, however, is to identify ways and means of creating an environment that is likely to encourage development in Africa. Perhaps the greatest strategy would be to develop political structures and government institutions that have the capacity to formulate and implement ‘genuine poverty alleviation strategies’. Administrative arrangements that no longer serve our needs should be overhauled or discarded altogether. Government should foster exploitation and management of natural resources by providing an enabling environment. Having stable government may not be effective if we don’t fight corruption. We should ensure that leaders and government agents become answerable to the tax payer. The public should be educated on the ills of corruption.Those who have stolen public funds must be made to return them and face the full force of the law. Again, people known to have stashed money in foreign banks should be forced to repatriate that money so as to improve cash flow in our economies.
Apart from this, Africa must find a way of solving their internal conflicts without involving the international community. After all, we are all brothers with a common cause .The need to unite and exist as unitary state should be stressed as this overrides clan and tribal rights or sentiments that fuel animosity. The Africa union should be strengthened to enable it to arbitrate intra and inter-state disputes .The resulting peace will provide a suitable environment for economic growth and set us on the road to recovery and prosperity. Another solution would be to develop rural-based economies, since the bulk of our population live in the rural areas. Industries that process farm produce and those that manufacture farm inputs, machinery and implements should be located in the rural areas .Similarly mining concerns should establish processing plants near the mines. Such industries will naturally recruit manpower from the locality involved and consequently reduce the incidence of rural-urban migration. Setting up industries in the rural areas will necessitate development of infrastructures which will open up rural areas for business This will further encourage expansion and increase food production to counter perennial food shortage in Africa .For instances development of dairy and beef processing industry in the rural areas will encourage sustainable livestock keeping and probably bring to an end loss of cattle to drought. A rural based economy will basically raise the income of the rural people and bridge the disparity between the rich and the poor.
We should also introduce appropriate technology in exploitation of natural resources and in wealth creation. Since imported technologies are expensive to maintain, Africa should tap local expertise to develop technologies appropriate to our needs. Home grown technology should enable us alleviate Africa’s food security by utilizing river and lake water for irrigation and by harnessing wind and solar energy.
Lastly our economic units such as ECOWAS, SADC, and EAC should be transformed into common markets by removing unnecessary tariffs on goods at various entry points so as to realize the benefits of a common market. The people of Africa should continually seek a better life. We have the resources; we have the manpower, and the capacity to make things move.
Questions
a) What should African countries do to fight corruption?
b) Explain how Africans can open up rural areas
c)What do you understand by the term ‘genuine poverty alleviation strategies’?
d) How can we reduce the incidence of rural –urban migration?
e)Why is appropriate technology useful?
f)How can African government improve cash flow in their economies .
In not more than fifty words write a summary on the various ways of fostering development in African countries
a)Rough copy
b)Fair copy
h) What is the tone of the last paragraph of this passage concerning the future of Africa?
i) The public should be educated on the ills of corruption. (Add a question tag)
j) Explain the meaning of the following words and phrase as used in the passage.
i) Stashed
ii) Disparity
Date posted: August 19, 2019.
- In the figure below, O is the centre of circle. Angle BCA=800 and angle CBO = 100. Determine the size of angle CAB.(Solved)
In the figure below, O is the centre of circle. Angle BCA=800 and angle CBO = 100. Determine the size of angle CAB.
Date posted: August 19, 2019.
- Given that the area of the trapezium ABCD is 30.8cm2, find the length of AD.(Solved)
Given that the area of the trapezium ABCD is 30.8cm2, find the length of AD.
Date posted: August 19, 2019.
- The image of a point Q(1,2) after a translation is Q1(-1,2). What is the coordinate of the point R whose image is R1(-3,-3) after undergoing...(Solved)
The image of a point Q(1,2) after a translation is Q1(-1,2). What is the coordinate of the point R whose image is R1(-3,-3) after undergoing the same translation.
Date posted: August 19, 2019.
- 32 girls and 52 boys were on an overseas learning trip, and they were divided into as many groups as possible where the number of...(Solved)
32 girls and 52 boys were on an overseas learning trip, and they were divided into as many groups as possible where the number of groups of girls and the number of groups of boys are the same. How many girls and how many boys are there in each group?
Date posted: August 19, 2019.
- Evaluate without using a calculator or Mathematical tables leaving your answer in the simplest form.(Solved)
Evaluate without using a calculator or Mathematical tables leaving your answer in the simplest form.
Date posted: August 19, 2019.
- Read the poem below and answer the questions that follow.(Solved)
Read the poem below and answer the questions that follow.
NATURALLY”
I fear the workers: they writhe in bristling grass
And wormy mud: out with dawn, back with dusk.
Depart with seed, and return with fat- bursting fruits.
And I ate the fruit.
And still they toil at boiling point,
in head – splitting noise and threatening saws:
They suck their energy from slimy cassava
And age – rusty water taps: till they make a Benz
And I ride in the benz: festooned with
stripped rags and python copper coiling monsters
While the workers clap their blistered hands
And I overrun their kids.
They build their hives: often out
of broken bones of fallen mates
And I drone in them – “state house”
Them,“collegize” them, officialize them.
And I……. I whore their daughters
Raised in litter – rotting hovels
And desiring a quickquickhighhighlifelife
To break the bond.
And I tell the workers to unite:
knowing well that they can’t see, hear or understand:
what with sweat and grim sealing their ears
And eyes already blasted with welding sparks,
And me speaking a colourless tongue
But one day a rainstorm shall flood
The litter rotten hovels and
wash the workers’ ears and eyes clean,
Refresh the tattered muscles for a long – delayed blow
a) Describe the working conditions of the workers as depicted in stanza 1 and 2.
b) The persona assumes different roles in stanza 3, 4 and 6.With illustrations explain these roles.
c) Identify and explain 2 images from the poem
d) Which bond do the girls want to break in stanza 5 and how do they do it.
e) What reasons are given for the workers’ inability to understand the persona?
f) What is the poem suggesting in the last stanza?
Date posted: August 19, 2019.
- Evaluate without using a calculator(Solved)
Evaluate without using a calculator
Date posted: August 19, 2019.
- The grid below shows a part of the periodic table. Study it and answer the questions that follow.The letters are not the actual symbols of...(Solved)
The grid below shows a part of the periodic table. Study it and answer the questions that follow.The letters are not the actual symbols of the elements.
(a) Element P is in group 1 and another group in the periodic table. Identify the other group and give a reason for your answer.
(b) Comment on the reactivity of the group in which element P belongs.
(c) Compare the melting points of elements R and Y.
(d) Compare the electricity conductivity of elements R and Y
(e) Explain the difference in melting points between the oxide of S and that of U
(f) Write an equation for the reaction between elements R and V.
(g) Which of the above elements would form;
(i) . A monovalent anion
(ii). A divalent cation
(h) Explain why element M is placed in group VIII
Date posted: August 19, 2019.
- From a sector of a circle subtending an angle of 1500 and radius 14cm, a conical cup is made.
Determine:
a) The radius of the conical cup....(Solved)
From a sector of a circle subtending an angle of 1500 and radius 14cm, a conical cup is made.
Determine:
a) The radius of the conical cup.
b) The volume of the cup
Date posted: August 19, 2019.
- Factorize and simplify completely(Solved)
Factorize and simplify completely
Date posted: August 19, 2019.
- Read the excerpt below and answer the questions that follow.(Solved)
Read the excerpt below and answer the questions that follow.
Rank: Is there anything wrong?
Nora: No, no, not in the least. It is only something it is my new dress —
Rank: What? Your new dress is lying there.
Nora: Oh, yes, that one; butthis is another. I ordered it. Torvald mustn't know about it —
Rank: Oho! Then that was the great secret.
Nora: Of course. Just go in to him; he is sitting in the inner room, Keep him as long as—
Rank: Make your kind easy; I won't let him escape. (Goes into HELMER'S room)
Nora: (to the MAID) And he is standing waiting in the kitchen?
Maid: Yes, he came up the back stairs.
Nora: But didn't you tell him no one was in?
Maid: Yes, but it was no good.
Nora: He won't go away?
Maid: No; he says he won't until he has seen you, ma'am.
Nora: Well, let him come in —but quietly. Hellen, you mustn't say anything about it to anyone. It is a surprise for my husband.
Maid: Yes, ma'am, i quite understand. (Exit)
Nora: This dreadful thing is going to happen! It will happen in spite of me! No, no, no, it can't happen — it shan't happen! (She bolts the door of HELMER'S room. The MAID opens the hall door for KROGSTAD and shuts it after him. He is wearing a fur coat, high boots and a furcap.)
Nora: (advancing towards him) Speak low — my husband is at home.
Krogstad: No matter about that.
Nora: What do you want of me?
Krogstad: An explanation of something
Nora: Make haste then. What is it?
Krogstad: You know, I suppose, that I have got my dismissal.
Nora: I couldn't prevent it, Mr. Krogstade I fought as hard as a I could on your side, but it was no good.
Krogstad: Does your husband love you so little, then? He knows what I can expose you to, and yet he ventures —
Nora: How can you suppose that he has any knowledge of the sort?
Questions:
a) Place the excerpt in its immediate context.
b) What is it that Nora claims to be another that she ordered? What does it reveal about her character trait?
c) This dreadful thing is going to happen! What is it that Nora fears will happen?
d) What character trait of Nora is brought outin the excerpt?
e) What is the presentation of Rank in the excerpt?
f) What major theme comes out in the excerpt?
g) What is the meaning of the following words as used in the excerpt?
Date posted: August 19, 2019.
- a) Fill in the table below.(Solved)
a) Fill in the table below.
b) On the same axes sketch the following curves;
y = 2 sin(x + 30) and y = 1 –2 cos 2x.
(c) Use your graph to solve the equation
2 sin (x + 30) + cos 2x = 1
(d) Find the;
(i) Period of y = 1 – cos2x
(ii) Phase angle of y = 2 sin (x + 30°)
Date posted: August 19, 2019.
- The graph below gives the motion of a car for some distance. Determine the total distance traveled.(Solved)
The graph below gives the motion of a car for some distance. Determine the total distance traveled.
Date posted: August 19, 2019.
- Solve the following pair of inequalities and represent the solution on the number line.(Solved)
Solve the following pair of inequalities and represent the solution on the number line.
Date posted: August 19, 2019.
- Two quantities P and n, are connected by the equation P = AKn, where A and K are constants. The table below shows some corresponding...(Solved)
Two quantities P and n, are connected by the equation P = AKn, where A and K are constants. The table below shows some corresponding values of n and P.
(a) State the linear equation connecting P and n.
(b) On the grid provided, draw a suitable straight line.
(c) Use your graph to estimate the value A and k.
Date posted: August 19, 2019.
- Find the acute angle y if sin 4y = cos 2y.(Solved)
Find the acute angle y if sin 4y = cos 2y.
Date posted: August 19, 2019.
- Solve for x and y in the following equations(Solved)
Solve for x and y in the following equations
Date posted: August 19, 2019.
- Draw a well labelled diagram to show the penetrating power of the three types of nuclear radiations.(Solved)
(a) Draw a well labelled diagram to show the penetrating power of the three types of nuclear radiations.
(b) . Which radiation causes more harm to human cells? Explain.
Date posted: August 19, 2019.
- The field book below gives measurements of a field. The distances are given in metres and AF = 100 m.(Solved)
The field book below gives measurements of a field. The distances are given in metres and AF = 100 m.
(a) Using a scale of 1cm represents 10m, draw a map of the field with straight boundary edges.
(b)
(i) Find the area of the field in square metres.
(ii) Determine the area of the field in hectares.
Date posted: August 19, 2019.
- Identify the following substances.(Solved)
Identify the following substances.
(a) (i) 
(ii) 
(b)Which of the above substances is suitable for use with hard water? Explain.
Date posted: August 19, 2019.
- A particle moves along a straight line such that its displacement S metres from a given point is(Solved)
A particle moves along a straight line such that its displacement S metres from a given point is
S = t3 – 5t2 + 3t + 4 where t is time in seconds.
Find:
(a) The displacement of the particle at t = 5
(b) The velocity of the particle when t = 5
(c) The values of t when the particle is momentarily at rest.
(d) The acceleration of the particle when t = 2.
Date posted: August 19, 2019.