- Each acre of potatoes required 9 men and each acre of cabbages requires 2 men. The farmer has 240 men available and he
must plant at...(Solved)
Each acre of potatoes required 9 men and each acre of cabbages requires 2 men. The farmer has 240 men available and he
must plant at least 10 acres of potatoes. The profit on potatoes is Kshs 1000 per acre and on cabbages is Kshs 1200 per
acre. If he plants x acres of potatoes and y acres of cabbages:
a) Write down three inequalities in x and y to describe this information
b) Represent these inequalities graphically.
c) Use your graph to determine the number of acres for each crop which will give maximum profit and hence find the
maximum profit.
Date posted: May 9, 2019. Answers (1)
- In the figure below ABC is a tangent to the circle centre O. DOG is a diameter, angle DGF = 60°. angle DBC = 48°...(Solved)
In the figure below ABC is a tangent to the circle centre O. DOG is a diameter, angle DGF = 60°. angle DBC = 48° and angle
DFE = 25°. Giving reasons, find the size of angles:
i) Angle FEB
ii) Obtuse FOB
iii) Angle EBD
iv) Angle BCD
v) Angle OBE
Date posted: May 9, 2019. Answers (1)
- a) Find the inverse of the matrix.(Solved)
a) Find the inverse of the matrix.
b) Hence determine the point of intersection of the lines.
y + x = 7
3x + y = 15
Date posted: May 9, 2019. Answers (1)
- After how many years would Kshs 15,000 amount to Kshs 24,015.50 at a rate of 16% p.a. compounded quarterly?(Solved)
After how many years would Kshs 15,000 amount to Kshs 24,015.50 at a rate of 16% p.a. compounded quarterly?
Date posted: May 9, 2019. Answers (1)
- Given that the dimensions of a rectangle are 12.0cm and 25.0cm. Find the percentage error in calculating the area.(Solved)
Given that the dimensions of a rectangle are 12.0cm and 25.0cm. Find the percentage error in calculating the area.
Date posted: May 9, 2019. Answers (1)
- T is a transformation represented by the matrix below;(Solved)
T is a transformation represented by the matrix below;
Under T, a square of area of 18cm² is mapped into a square of area 110cm². Find the value of x.
Date posted: May 9, 2019. Answers (1)
- In the figure below QT is a tangent to a circle at Q. PXRT and QXS are straight lines. PX =6cm, RT=8cm, QX=4.8cm and XS...(Solved)
In the figure below QT is a tangent to a circle at Q. PXRT and QXS are straight lines. PX =6cm, RT=8cm, QX=4.8cm and XS =
5cm.
Find the length of :
a) XR
b) QT
Date posted: May 9, 2019. Answers (1)
- Two types of tea which cost Kshs 200 per kg and Kshs 250 per kg are mixed so that their weights are in the ratio...(Solved)
Two types of tea which cost Kshs 200 per kg and Kshs 250 per kg are mixed so that their weights are in the ratio 5 : 3
respectively. Calculate the cost of 20kg of the mixture.
Date posted: May 9, 2019. Answers (1)
- Find the centre of radius of a circle whose equation is 3x² + 3y² - 18x + 12y + 39 = 12(Solved)
Find the centre of radius of a circle whose equation is 3x² + 3y² - 18x + 12y + 39 = 12
Date posted: May 9, 2019. Answers (1)
- Mr. Partel a civil servant pays PAYE of Kshs 3500 per month. He is entitled to a personal relief of Kshs 1164 per month. Using
the...(Solved)
Mr. Partel a civil servant pays PAYE of Kshs 3500 per month. He is entitled to a personal relief of Kshs 1164 per month. Using
the tax brackets below. Find Partel's monthly taxable income.
Date posted: May 9, 2019. Answers (1)
- Solve the trigonometric equation for 0°= x =360°.
3Cos²x + 8 Sin x - 4 = 3(Solved)
Solve the trigonometric equation for 0°≤ x ≤360°.
3Cos²x + 8 Sin x - 4 = 3
Date posted: May 9, 2019. Answers (1)
- Find the point on the curve y = x² - 3x + 6 at which the gradient is 3 and find the equation of the...(Solved)
Find the point on the curve y = x² - 3x + 6 at which the gradient is 3 and find the equation of the tangent to the curve at this
point.
Date posted: May 9, 2019. Answers (1)
- The nth term of a sequence in 2n + 1(Solved)
The nth term of a sequence in 2n + 1
i) State the first four terms of the sequence
ii) Determine the sum of the first 40 terms of the series.
Date posted: May 9, 2019. Answers (1)
- A quantity F varies partly at t and partly as the square root of t. When t = 4, F = 22 and when t...(Solved)
A quantity F varies partly at t and partly as the square root of t. When t = 4, F = 22 and when t = 9, f = 42. Write the equation
connecting F and t.
Date posted: May 9, 2019. Answers (1)
- Make x the subject of the formula.(Solved)
Make x the subject of the formula.
Date posted: May 9, 2019. Answers (1)
- Work out the following;(Solved)
Work out the following;
Date posted: May 9, 2019. Answers (1)
- Use logarithm table to evaluate to 4 decimal places.(Solved)
Use logarithm table to evaluate to 4 decimal places.
Date posted: May 9, 2019. Answers (1)
- Main was paid an initial salary of Kshs 200,000 per annum with a fixed annual increment. John was paid an initial salary of
Kshs 250,000 per...(Solved)
Main was paid an initial salary of Kshs 200,000 per annum with a fixed annual increment. John was paid an initial salary of
Kshs 250,000 per annum with 50% increment compounded annually.
a) Given that Maina's annual salary is the 8th year was Kshs 298,000 determine
i) His annual increment.
ii) The total amount of money Maina earned during the 8 years.
b) Determine John's monthly earning, correct to the nearest shillings during the eight year.
c) Determine, correct to the nearest shilling
i) The total mount of money John earned during the 8 years.
ii) The difference between Maina's and John's average monthly earning during the 8 years.
Date posted: May 9, 2019. Answers (1)
- A right conical frustum of base radius 7cm, top radius 4cm and height 5cm is stuck onto a cylinder or base radius 7 cm and
height...(Solved)
A right conical frustum of base radius 7cm, top radius 4cm and height 5cm is stuck onto a cylinder or base radius 7 cm and
height 6 cm and further attached to the hemisphere to form a closed solid as shown below. (Take pi = 22/7)
a) Find the volume of the solid.
b) Given that the mass or the solid is 2430g find its density.
Date posted: May 9, 2019. Answers (1)
- Triangle PQR whose vertices are P(2, 2), Q(5, 3) and R(4, 1) is mapped onto triangle P1Q1R1 by a transformation whose
matrix is(Solved)
Triangle PQR whose vertices are P(2, 2), Q(5, 3) and R(4, 1) is mapped onto triangle P1Q1R1 by a transformation whose
matrix is
a) On the grid provided draw triangle PQR and P1Q1R1
b) The triangle P1Q1R1 is mapped onto triangle P11Q11R11 whose vertices are P11 (-2, -2), Q11(-5, -3), R11 (-4, -1)
i) Find the matrix of transformation which maps triangle P1Q1R1 onto triangle P11Q11R11
ii) Draw the image P11Q11R11 on the same grid and fully described the transformation that maps PQR onto P11Q11R11
Date posted: May 9, 2019. Answers (1)