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- A bag contains 5 red, 4 white and 3 blue beads. Three beads are selected at random without replacement. Find the probability that
(a)...(Solved)
A bag contains 5 red, 4 white and 3 blue beads. Three beads are selected at random without replacement. Find the probability that
(a) The first red bead is the third bead picked.
(b) The beads selected were, white and blue;
(i) in that order
(ii) In any order
(c) No red bead is picked
(d) Beads picked are of the same colour.
Date posted: September 17, 2019.
- Study carefully the photograph shown below.(Solved)
Study carefully the photograph shown below.
a) (i) Identify the cells above.
(ii) State two functions of the cells shown above.
b) Explain how the above cells are adapted to their function.
c) Name a parasite that may invade and destroy the cells above.
d) Suggest two bones in an adult man, which produce the cells shown above.
Date posted: September 17, 2019.
- Differentiate between miscarriage and premature birth.(Solved)
Differentiate between miscarriage and premature birth.
Date posted: September 17, 2019.
- Study the food web below and answer the questions that follow.(Solved)
Study the food web below and answer the questions that follow.
(a) Construct any food chain in which human is a tertiary consumer.
(b) Suggest the possible short term effects in this ecosystem if all kites migrate away.
Date posted: September 17, 2019.
- A student at Kaloleni High School picked an organism by the shore of the Indian Ocean. After examining it very carefully,she formed an opinion that...(Solved)
A student at Kaloleni High School picked an organism by the shore of the Indian Ocean. After examining it very carefully,she formed an opinion that the organism belongs to class Arachnida. She then classified it as follows:-
Kingdom – Animalia
Phylum – Arthropoda
Class – Arachnida
(a) Identify one mistake in her classification.
(b) List down two characteristics that she could have used in placing the organism in class Arachnida.
Date posted: September 17, 2019.
- Some students collected a living specimen for use in the laboratory. It had the following characteristics:-
- Elongated body
- Two pairs of legs per segment
- Body...(Solved)
Some students collected a living specimen for use in the laboratory. It had the following characteristics:-
- Elongated body
- Two pairs of legs per segment
- Body has between 9 – 100 segments
- Three body parts.
Which class does the above animal belong?
Date posted: September 17, 2019.
- State one characteristic shared by the class Reptilia and class Aves.(Solved)
State one characteristic shared by the class Reptilia and class Aves.
Date posted: September 17, 2019.
- Find the inverse of the matrix . hence find the coordinates of the point of intersection of the line 3x+ y = 4 and ...(Solved)
Find the inverse of the matrix
. hence find the coordinates of the point of intersection of the line 3x+ y = 4 and 2x –y = 1
Date posted: September 17, 2019.
- A group of 5 men can do a piece of work in 12 hours. How long would a group of 8 men take to...(Solved)
A group of 5 men can do a piece of work in 12 hours. How long would a group of 8 men take to complete the same work if they work at thrice the rate of the first group?
Date posted: September 17, 2019.
- What is the name of the hormone responsible for regulating the level of sodium ions in blood of a mammal?(Solved)
What is the name of the hormone responsible for regulating the level of sodium ions in blood of a mammal?
Date posted: September 17, 2019.
- Find the compound interest on shs. 15, 200 on deposited in a bank paying compound interest of 10.5% per annum for 5 year.(Solved)
Find the compound interest on shs. 15, 200 on deposited in a bank paying compound interest of 10.5% per annum for 5 year.
Date posted: September 17, 2019.
- The fourth term of geometric sequence is 54 and the sixth term is 486. Find the common ratio and the first term.(Solved)
The fourth term of geometric sequence is 54 and the sixth term is 486. Find the common ratio and the first term.
Date posted: September 17, 2019.
- Below are photographs of specimen labeled E and F which were obtained from the same animal examine them(Solved)
Below are photographs of specimen labeled E and F which were obtained from the same animal examine them
a) With reason identify E and F
E
Reason
F
Reason
b) On photograph E label two parts of the specimen.
Date posted: September 17, 2019.
- Solve for x in 2 + log7 ( 3x-4) = log7 98.(Solved)
Solve for x in 2 + log7 ( 3x-4) = log7 98.
Date posted: September 17, 2019.
- If OA = 3 i + 2j – 4k and OB = 4i + 5j – 2k, P divides AB in the ratio 3:-2....(Solved)
If OA = 3 i + 2j – 4k and OB = 4i + 5j – 2k, P divides AB in the ratio 3:-2. Determine the modulus of Op leaving your answer to 1 decimal place. Given that O is the origin.
Date posted: September 17, 2019.
- You are provided with photographs of specimens labeled J1,J2,K1 and K2. Examine them.(Solved)
You are provided with photographs of specimens labeled J1,J2,K1 and K2. Examine them.
With a reason name the classes to which specimen J1 J2 K1 and K2 belongs
J1 and J2
Reason
K1 and K2
Reason
b) i) Name the parts labeled X in specimen J1
ii) What is the importance of the curvature
c) Explain how the curved part in J1 WILL straighten so that the stem will look that of J2
d) Name the part that protects the plumule in specimen K1 and K2
e) Which of the following types of seedlings may form swelling on the roots later in its life?
f) i) Name the structure found on the stem just below the leaves of specimen J2
ii) State one function of the structure named in (i) above.
g) i) What type cof germinataion is exhibited by specimen K1 and K2
ii) Give a reason for your answer in g (i) above
Date posted: September 17, 2019.
- Make q the subject of the formula (Solved)
Make q the subject of the formula
![fig11317920191516.png](/questions/uploads/fig11317920191516.png)
Date posted: September 17, 2019.
- After millet, the cost per kilogram of maize flour and millet flour shs 24 and shs. 40 respectively. The maize and millet flour are now...(Solved)
After millet, the cost per kilogram of maize flour and millet flour shs 24 and shs. 40 respectively. The maize and millet flour are now mixed in the ration 5:3 what should the selling price per kilogramme of the mixture be, in order to make a 25% profit?
Date posted: September 17, 2019.
- The diagram below represents the nitrogen cycle.(Solved)
The diagram below represents the nitrogen cycle.
a) State the process labeled A and D.
b) Name the group of organism labeled .
c) Name the compound represented by B.
d) i) Name the group of plants which promote process A.
ii) State the part of the plant where process A takes place.
e) How would excess pesticides in the soil interfere with process A.
Date posted: September 17, 2019.
- a) Expand ( 1+ ¼ x)4
b) use your expansion in (a) above to evaluate ( 0.975)4 to 4 significant figures.(Solved)
a) Expand ( 1+ ¼ x)4
b) use your expansion in (a) above to evaluate ( 0.975)4 to 4 significant figures.
Date posted: September 17, 2019.
- Find the radius and the coordinates of the centre of the circle whose equations is
2x2 + 2y2 – 6x = 10y + 9 =0
(Solved)
Find the radius and the coordinates of the centre of the circle whose equations is
2x2 + 2y2 – 6x = 10y + 9 =0
Date posted: September 17, 2019.
- In humans haemophilia is caused by a recessive gene. A man whose mother was hemophiliac marries a normal woman whose father was hemophiliac let H...(Solved)
In humans haemophilia is caused by a recessive gene. A man whose mother was hemophiliac marries a normal woman whose father was hemophiliac let H represent dominant gene.
a) Define the term recessive gene.
b) What is the possible genotype of the woman?
ii) Using punnet square work out the genotype of the first filial generation. Show your working.
c) i) What is the probability of the daughter being haemophilic?
ii) State one advantage of mutation to plants.
Date posted: September 17, 2019.
- Active yeast cells were added to dilute sugar solution in a container. The mixture was left in a warm room. After a few hour bubbles...(Solved)
Active yeast cells were added to dilute sugar solution in a container. The mixture was left in a warm room. After a few hour bubbles of gases were observed escaping from the mixture.
a) Write an equation to represent the chemical process
b) What is the importance of the type of reaction in industries?
Date posted: September 17, 2019.
- The figure shows a circle , centre o of radius 7cm MN and PN are tangents to the circle at M and P...(Solved)
The figure shows a circle , centre o of radius 7cm MN and PN are tangents to the circle at M and P respectively. ON = 25 cm calculate the length MP
![fig10717920191419.png](/questions/uploads/fig10717920191419.png)
Date posted: September 17, 2019.
- Use logarithms, correct to 4 decimal places, to evaluate.
(Solved)
Use logarithms, correct to 4 decimal places, to evaluate.
![fig10517920191410.png](/questions/uploads/fig10517920191410.png)
Date posted: September 17, 2019.
- (a) An arithmetic progression is such that the first term is -5, the last is 135 and the sum of progression is...(Solved)
(a) An arithmetic progression is such that the first term is -5, the last is 135 and the sum of progression is 975. Calculate
(i) The number of terms in the series.
(ii) The common difference of the progression.
(b)The sum of the first three terms of a geometric progression is 27 and first term is 36.
Determine the common ratio and the value of the fourth term.
Date posted: September 17, 2019.
- The figure below shows a right pyramid VABCD with a square base of side 6 cm. VA = VB = VC = VD =...(Solved)
The figure below shows a right pyramid VABCD with a square base of side 6 cm. VA = VB = VC = VD = 12 cm
Calculate;
(i) The height of the pyramid correct to 2 d.p
(ii) The angle between the planes VAD and VBC correct to 2 significant figures.
Date posted: September 17, 2019.
- The taxation rate, for 2007 were as in the table below. In certain month in 2007, Mutai paid a tax of Ksh. 3000...(Solved)
The taxation rate, for 2007 were as in the table below.
In certain month in 2007, Mutai paid a tax of Ksh. 3000 after having been given a personal relief of Ksh. 1056 per month.
(a)How much tax per month could he have paid if he did not get tax relief.
(b)Calculate the his total taxable income in Ksh. P.m.
(c)Given that his total taxable allowance amount to Ksh. 4520 P.m. Calculate his monthly basic
salary in Kenya shillings.
Date posted: September 17, 2019.
- The graph below is part of the straight line graph obtained from the initial equation y = axn use the graph to calculate...(Solved)
The graph below is part of the straight line graph obtained from the initial equation y = axn use the graph to calculate the value of a and n,
![fig9417920191325.png](/questions/uploads/fig9417920191325.png)
Date posted: September 17, 2019.
- The area of a triangle where height is 4.4cm measured to the nearest millimeter is 13.2cm2. Determine the maximum possible length of the base of...(Solved)
The area of a triangle where height is 4.4cm measured to the nearest millimeter is 13.2cm2. Determine the maximum possible length of the base of the triangle to 4 s.f.
Date posted: September 17, 2019.