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- The position vectors of A and B are a = 2i - 3j + 4k and b = -2i - j + 2k respectively. Find...(Solved)
The position vectors of A and B are a = 2i - 3j + 4k and b = -2i - j + 2k respectively. Find to 2d.p the length of vector AB.
Date posted: May 3, 2019. Answers (1)
- Rono invested a sum of money, sh p at 24% p.a simple interest for 8 years and realised that he got the same amount as
Wekesa...(Solved)
Rono invested a sum of money, sh p at 24% p.a simple interest for 8 years and realised that he got the same amount as
Wekesa who invested sh. 2p for 4 years at compound interest. Calculate the rate of interest p.a
Wekesa enjoyed.
Date posted: May 3, 2019. Answers (1)
- Use logarithms correct to 4 significant figures to evaluate.(Solved)
Use logarithms correct to 4 significant figures to evaluate.
Date posted: May 3, 2019. Answers (1)
- A particle starts from rest and moves with an acceleration, a, given by a = (10 - t)m/s2. Given that velocity, Vm/s is
2m/s; when time;...(Solved)
A particle starts from rest and moves with an acceleration, a, given by a = (10 - t)m/s2. Given that velocity, Vm/s is
2m/s; when time; t seconds is 1 sec.
a) Express in terms of t;
i) Its velocity after t seconds.
ii) Its displacement after t seconds.
b) Calculate its velocity when t = 3 seconds
c) Calculate the maximum velocity attained.
Date posted: May 3, 2019. Answers (1)
- A bus travels from Murang’a to Meru a distance of 320km at a speed of x km/h. If the speed is reduced by 20km/h the
bus...(Solved)
A bus travels from Murang’a to Meru a distance of 320km at a speed of x km/h. If the speed is reduced by 20km/h the
bus would take 48 minutes more.
a) Form an equation to represent the given information and simplify it.
b) Find the speed of the bus.
c) Determine the time taken by the bus for the whole journey.
d) Another car is moving from Meru to Murang’a at a speed of 80km/h. Determine their relative speed.
Date posted: May 3, 2019. Answers (1)
- The table below shows measurements, in metres made by surveyor in his field book.(Solved)
The table below shows measurements, in metres made by surveyor in his field book.
i) Using an appropriate scale draw the region.
ii) Find the area in hectares of the filed.
Date posted: May 3, 2019. Answers (1)
- The diagram below is a right pyramid on a rectangular base.(Solved)
The diagram below is a right pyramid on a rectangular base.
Given that the volume of the solid is 280m3 and its base area is 60cm2 and that AB : BC = 3 : 5, determine
i) The height of the pyramid.
ii) The length and width of the base.
iii) The slant edge of the pyramid.
Date posted: May 3, 2019. Answers (1)
- The following data shows the sample of age distribution in years of the people who reside in a certain village in
Murang’a.(Solved)
The following data shows the sample of age distribution in years of the people who reside in a certain village in
Murang’a.
a) Complete the histogram of the given data below.
b) Calculate the mean age of the given sample in the village.
Date posted: May 3, 2019. Answers (1)
- The figure below is a cone whose base radius is 7cm and slant height 14cm. The net of the cone is a sector of a...(Solved)
The figure below is a cone whose base radius is 7cm and slant height 14cm. The net of the cone is a sector of a circle.
a) Find the angle substended at the centre of the sector.
b) Draw the net of the solid.
Date posted: May 3, 2019. Answers (1)
- Solve the simultaneous inequalities and represent the solution on a number line; 4 - 2x < 8 and 2 - 3x = - 7(Solved)
Solve the simultaneous inequalities and represent the solution on a number line; 4 - 2x < 8 and 2 - 3x ≥ - 7
Date posted: May 3, 2019. Answers (1)
- Given that a = 5i + 4j, b = 3i - 2j and c = 7i + 10j; find the scalars m and n such...(Solved)
Given that a = 5i + 4j, b = 3i - 2j and c = 7i + 10j; find the scalars m and n such that ma + nb = c
Date posted: May 3, 2019. Answers (1)
- In the figure below O is the centre of the circle diameter AB. 0, AX = 4cm and PX = 10cm.
Calculate the radius...(Solved)
In the figure below O is the centre of the circle diameter AB. 0, AX = 4cm and PX = 10cm.
Calculate the radius of the semi-circle.
Date posted: May 3, 2019. Answers (1)
- Kairietu is now four times as old as her daughter and six times as old as her son. Twelve years from now, the sum of
the...(Solved)
Kairietu is now four times as old as her daughter and six times as old as her son. Twelve years from now, the sum of
the ages of her daughter and son will differ from her age by 9 years. What is Kairietu’s present age?
Date posted: May 3, 2019. Answers (1)
- A square whose vertices are P(1, 1), Q(2, 1), R(2, 2) and S(1, 2) is given an enlargement with centre at (0, 0).
Find the images...(Solved)
A square whose vertices are P(1, 1), Q(2, 1), R(2, 2) and S(1, 2) is given an enlargement with centre at (0, 0).
Find the images of the vertices if the scale factor is 3.
Date posted: May 3, 2019. Answers (1)
- The cash price of a music system is kshs. 30,000. It can be bought under hire purchase terms by paying a deposit of
kshs. 10,000 and...(Solved)
The cash price of a music system is kshs. 30,000. It can be bought under hire purchase terms by paying a deposit of
kshs. 10,000 and twelve monthly installments of Kshs. 3,200 per month. Determine the percentage rate of interest per
month.
Date posted: May 3, 2019. Answers (1)
- A colony of insects was found to have 250 insects at the beginning. Thereafter, the number of insects doubled
every two days. Find the number of...(Solved)
A colony of insects was found to have 250 insects at the beginning. Thereafter, the number of insects doubled
every two days. Find the number of insects after 16 days.
Date posted: May 3, 2019. Answers (1)
- In the figure below, O is the centre of the circle. PQ is parallel to OR and PQO = 400, find (Solved)
In the figure below, O is the centre of the circle. PQ is parallel to OR and PQO = 400, find 
Date posted: May 3, 2019. Answers (1)
- Given that Sin x = 3/4 find without using tables or calculators.(Solved)
Given that Sin x = 3/4 find without using tables or calculators.
a) Cos x
b) Tan (90 - x)
Date posted: May 3, 2019. Answers (1)
- Kanyan toured Switzerland from Germany. In Switzerland he bought his wife a present worth 72 Deutsche marks.
Find the value of the present in(Solved)
Kanyan toured Switzerland from Germany. In Switzerland he bought his wife a present worth 72 Deutsche marks.
Find the value of the present in
a) Swiss Francs
b) Kenya shillings correct to the nearest sh, if
1 Swiss Franc = 1.25 Deutsche marks
1 Swiss Franc = 48.2 Kenya shillings
Date posted: May 3, 2019. Answers (1)
- A polygon of n sides has half of the interior angles 1500 each and the rest 1700 each. Find the value of n.(Solved)
A polygon of n sides has half of the interior angles 1500 each and the rest 1700 each. Find the value of n.
Date posted: May 3, 2019. Answers (1)