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Two taps, A and B, when opened at the same time can fill a tank in 3 hours 36 minutes. Tap A working alone takes...
(Solved)
Two taps, A and B, when opened at the same time can fill a tank in 3 hours 36 minutes. Tap A working alone takes 3 hours longer than Tap B to fill the tank. How many hours does it take Tap A alone to fill the tank?
Date posted:
November 20, 2019
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Answers (1)
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Point M is the midpoint of a straight line XY. If the position vectors of Y and M are 3i + 4j - 2k and...
(Solved)
Point M is the midpoint of a straight line XY. If the position vectors of Y and M are 3i + 4j − 2k and 3j − 0.5k respectively. Find the position vector of X, hence the magnitude of XY.
Date posted:
November 20, 2019
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Answers (1)
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Without using mathematical tables or calculators, simplify
(Solved)
Without using mathematical tables or calculators, simplify

Date posted:
November 20, 2019
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Answers (1)
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Each side of a regular heptagon measures 11.2cm. What is the percentage error in calculating the heptagon’s perimeter?
(Solved)
Each side of a regular heptagon measures 11.2cm. What is the percentage error in calculating the heptagon’s perimeter?
Date posted:
November 19, 2019
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Answers (1)
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Using completing the square method, solve
10x2 - 11x - 6 = 0
(Solved)
Using completing the square method, solve
10x2 − 11x − 6 = 0
Date posted:
November 19, 2019
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Answers (1)
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The figure shows a water tank which consists of a hemispherical part surmounted on top of a cylindrical part. The two parts have the same...
(Solved)
The figure shows a water tank which consists of a hemispherical part surmounted on top of a cylindrical part. The two parts have the same diameter of 2.1 M and the cylindrical part is 1.5 m high as shown. All surfaces of the tank are made of iron sheets. (Take π = 22/7)

(a) Allowing for 15% wastage in overlapping, calculate to 2d.p the area of iron sheets required.
(b) Ironsheet costs sh.400 per square meter while labour and other. Materials amountsto 50% of the cost of ironsheets. Find the cost of constructing the tank.
(c) Calculate the (i) volume of the tank in m3
(ii) capacity of the tank in litres.
Date posted:
November 19, 2019
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Answers (1)
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Lines L1 is given by equation y = -2x +4 and L2 is 3x- y=1 intersect at T.
(a) Determine the co-ordinates of T.
(b) Another...
(Solved)
Lines L1 is given by equation y = -2x +4 and L2 is 3x- y=1 intersect at T.
(a) Determine the co-ordinates of T.
(b) Another line, L3 is perpendicular to line L2 and passes through point N(5,8).Determine its equation and leave the answer in the form of ax + by=c where a, b, and c are integers.
(c) Determine the equation of a perpendicular bisector of a line segment passing through points T and N.
Date posted:
November 19, 2019
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Answers (1)
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Three towns PQR are such that Q is 20km in the bearing of 045° from P while R is 27.5 km in the bearing of...
(Solved)
Three towns PQR are such that Q is 20km in the bearing of 045° from P while R is 27.5 km in the bearing of S20°E from Q.Using the scale of 1cm rep 5km.
(a) Determine the actual distance between P and R.
(b) State the true bearing of P from R.
(c) Show a point x which is equidistant from the three towns.
(d) Determine the actual distance from x to town R.
Date posted:
November 19, 2019
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Answers (1)
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On a certain map, an estate is represented by an area of 48cm2. If the actual area of the estate is 1200Ha, find the scale...
(Solved)
On a certain map, an estate is represented by an area of 48cm2. If the actual area of the estate is 1200Ha, find the scale of the map in the form 1: n.
Date posted:
November 19, 2019
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Answers (1)
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Using tables of reciprocals evaluate
(Solved)
Using tables of reciprocals evaluate

Date posted:
November 19, 2019
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Answers (1)
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Given that tan (90-x) = 3/4 without using calculators or tables,
Find: (i) Sin x
(ii) Cos (90 – x)
(Solved)
Given that tan (90-x) = 3/4 without using calculators or tables,
Find: (i) Sin x
(ii) Cos (90 – x)
Date posted:
November 19, 2019
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Answers (1)
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The diagram below shows a region R bounded by 3 lines L1, L2 and L3
Determine the 3 inequalities satisfied by the region marked R.
(Solved)
The diagram below shows a region R bounded by 3 lines L1, L2 and L3

Determine the 3 inequalities satisfied by the region marked R.
Date posted:
November 19, 2019
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Answers (1)
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James left sh 430,500 to be shared by his wife, daughter and son in the ratio of 2:1:3 respectively. His wife decided to divide her...
(Solved)
James left sh 430,500 to be shared by his wife, daughter and son in the ratio of 2:1:3 respectively. His wife decided to divide her share equally between her daughter and son. Find how much the daughter finally got.
Date posted:
November 19, 2019
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Answers (1)
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Last year, Onyango was four times as old as his son, in four years time, the sum of their ages will be 53. Determine their...
(Solved)
Last year, Onyango was four times as old as his son, in four years time, the sum of their ages will be 53. Determine their present ages.
Date posted:
November 19, 2019
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Answers (1)
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Three numbers are such that m2n3k = 360. Find m, n, and k.
(Solved)
Three numbers are such that m2n3k = 360. Find m, n, and k.
Date posted:
November 19, 2019
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Answers (1)
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Agotho has a rectangular plot that was measured to the nearest meter and found to be 80m in length and 60m in width. Determine the...
(Solved)
Agotho has a rectangular plot that was measured to the nearest meter and found to be 80m in length and 60m in width. Determine the percentage error in its perimeter.
Date posted:
November 19, 2019
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Answers (1)
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Evaluate without using Mathematical tables or a calculator.
2log5 - 1/2 log16 + 2 log40
(Solved)
Evaluate without using Mathematical tables or a calculator.
2log5 - 1/2 log16 + 2 log40
Date posted:
November 19, 2019
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Answers (1)
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The region R in the figure below is defined by the inequalities L1, L2 and L3.
Find the three inequalities.
(Solved)
The region R in the figure below is defined by the inequalities L1, L2 and L3.

Find the three inequalities.
Date posted:
November 19, 2019
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Answers (1)
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A regular polygon has internal angle of 1500 and side of length 10cm.
(a) Find the number of sides of the polygon.
(b) Find the perimeter...
(Solved)
A regular polygon has internal angle of 1500 and side of length 10cm.
(a) Find the number of sides of the polygon.
(b) Find the perimeter of the polygon.
Date posted:
November 19, 2019
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Answers (1)
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In a carton there are 8 red pens, 5 blue pens and 2 green pens. Two pens are picked at random
from the carton without replacement.
a)...
(Solved)
In a carton there are 8 red pens, 5 blue pens and 2 green pens. Two pens are picked at random
from the carton without replacement.
a) Draw a probability three diagram to represent this information.
b) Use the tree diagram to find the probability that:
i) The first pen picked is red.
ii) The first pen picked is blue or green.
iii) The two pens picked are blue.
iv) At least one of the pens picked is green.
Date posted:
November 19, 2019
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Answers (1)