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- Calculate the standard deviation (S.D) for the set of numbers given:
4, 6, 12,3,9,8. (Solved)
Calculate the standard deviation (S.D) for the set of numbers given:
4, 6, 12,3,9,8.
Date posted: September 23, 2019. Answers (1)
- Find the compound interest on Ksh. 21,000 in 3 years at a Rate of 20% P.a. Compounded semi annually.(Solved)
Find the compound interest on Ksh. 21,000 in 3 years at a Rate of 20% P.a. Compounded semi annually.
Date posted: September 23, 2019. Answers (1)
- An aeroplane flies 125km in the direction 1100. It then changes course and flies for 170km in the direction of 1600. Find by calculation its...(Solved)
An aeroplane flies 125km in the direction 1100. It then changes course and flies for 170km in the direction of 1600. Find by calculation its distance from the starting point.
Date posted: September 23, 2019. Answers (1)
- Find the sum of the first 10 terms of the series: Log x + log x2 + log x3……………(Solved)
Find the sum of the first 10 terms of the series: Log x + log x2 + log x3……………
Date posted: September 23, 2019. Answers (1)
- If
Find the values of a, b and c(Solved)
If 
Find the values of a, b and c
Date posted: September 23, 2019. Answers (1)
- The figure below is a segment of a circle cut-off by chord AB. Line MX is perpendicular Bisector of chord AB.
If AB is 20cm ad...(Solved)
The figure below is a segment of a circle cut-off by chord AB. Line MX is perpendicular Bisector of chord AB.
If AB is 20cm ad MX is 6cm. Calculate the radius of the circle from which the chord was cut.
Date posted: September 23, 2019. Answers (1)
- Solve the simultaneous equations:(Solved)
Solve the simultaneous equations:
Date posted: September 23, 2019. Answers (1)
- A rectangle has a length of 14.6cm and a width of 6.70 cm. Find the percentage Error in calculating the area of the rectangle.(Solved)
A rectangle has a length of 14.6cm and a width of 6.70 cm. Find the percentage Error in calculating the area of the rectangle.
Date posted: September 23, 2019. Answers (1)
- Use Logarithm tables to evaluate(Solved)
Use Logarithm tables to evaluate
Date posted: September 23, 2019. Answers (1)
- Using logarithms, evaluate(Solved)
Using logarithms, evaluate
Date posted: September 23, 2019. Answers (1)
- Make x the subject of the formula:(Solved)
Make x the subject of the formula:
Date posted: September 23, 2019. Answers (1)
- Solve the equation(Solved)
Solve the equation 
Date posted: September 23, 2019. Answers (1)
- Make P the subject of the formula(Solved)
Make P the subject of the formula 
Date posted: September 23, 2019. Answers (1)
- The Nyamira Express company runs a fleet of two types of buses operating between
Nairobi and Kisii. Type A bus has a capacity of 52...(Solved)
The Nyamira Express company runs a fleet of two types of buses operating between
Nairobi and Kisii. Type A bus has a capacity of 52 passengers and 200kg of luggage.
Type B carries 32 passengers and 300kg of luggage. On a certain day, there were 500
passengers with 3500kg of luggage to be transported. The company could only use a
maximum of 15 buses altogether.
a)If the company uses x buses of type A and y buses of type B. Write down all the
inequalities satisfied by the above conditions.
b)Draw the inequalities representing the above information
c)If the cost of running one bus of type A is sh.7200 and that of type B is sh.6000,
find the minimum cost of running the buses.
Date posted: September 23, 2019. Answers (1)
- A particle moves in a straight line with acceleration (5 – 12t) m/s2, t seconds after the start.
Given that the particle started with a velocity...(Solved)
A particle moves in a straight line with acceleration (5 – 12t) m/s2, t seconds after the start.
Given that the particle started with a velocity of 3m/s.
a)Find the velocity in terms of t.
b)Determine the velocity after 2 seconds
c)Determine the maximum velocity attained by the particle
d)Calculate the distance covered after one second.
Date posted: September 23, 2019. Answers (1)
- In Kemera Secondary school, there are 110 candidates. They sat for a test and scored the following marks
a)i)Find the value of X
ii)Draw a cumulative frequency...(Solved)
In Kemera Secondary school, there are 110 candidates. They sat for a test and scored the following marks
a)i)Find the value of X
ii)Draw a cumulative frequency curve representing the information above.
b)Use the graph to estimate the;
i)Median
ii)70th percentile
c)If 20% of the candidates passed the test, use the graph to determine the passmark.
Date posted: September 23, 2019. Answers (1)
- a)Draw a rectangle PQRS, P(1, 1) Q(4,1), R(4, 3) and S(1, 3) and its image P1Q1R1S1
under a transformation represented by the matrix.
b)P1Q1R1S1 is mapped...(Solved)
a)Draw a rectangle PQRS, P(1, 1) Q(4,1), R(4, 3) and S(1, 3) and its image P1Q1R1S1
under a transformation represented by the matrix.
b)P1Q1R1S1 is mapped onto P11Q11R11S11 by the matrix 
Draw the image P11Q11R11S11, on the same axes.
c)Determine the single matrix which maps P11Q11R11S11 onto PQRS
d)Find the coordinates of P111Q111R111S111 the image of P11Q11R11S11 after a reflection in the line y = x.
Date posted: September 23, 2019. Answers (1)
- The income taxation table for the year 2010 was as shown;
Mr. Ochieng is an employee who earns a basic salary of Ksh.30,000 per month. Other...(Solved)
The income taxation table for the year 2010 was as shown;
Mr. Ochieng is an employee who earns a basic salary of Ksh.30,000 per month. Other
monthly benefits are a house allowance of Ksh.6,000 and commuter allowance of Ksh.3,400.
He claims a tax relief of sh.1156 per month.
Calculate
a)i)His monthly taxable income in K₤
ii)His monthly net tax
b)Other deductions per month are:-
NHIF Kshs.320
Coop Loan Ksh.5400
WCPS ksh.300
Calculate his monthly net salary
Date posted: September 23, 2019. Answers (1)
- The figure below shows a cuboid ABCDEFGH. AB = 6cm, BC = 4cm and CG = 8cm.
Given that N is the midpoint of EH.
Calculate...(Solved)
The figure below shows a cuboid ABCDEFGH. AB = 6cm, BC = 4cm and CG = 8cm.
Given that N is the midpoint of EH.
Calculate the angle between line BN and the base ABCD.
Date posted: September 23, 2019. Answers (1)
- Solve the trigonometric equation.
Cos 2x = sin x for 00 < x < 3600(Solved)
Solve the trigonometric equation.
Cos 2x = sin x for 00 < x < 3600
Date posted: September 23, 2019. Answers (1)