Study resources on Kenyaplex

Get ready-made curriculum aligned revision materials

Exam papers, notes, holiday assignments and topical questions – all aligned to the Kenyan curriculum.

Or go directly to:

Class notes Holiday assignments Topical questions Other resources

A Biology class collected seed pods and weighted them to the nearest gramme. The frequency distribution table is given below.

A Biology class collected seed pods and weighted them to the nearest gramme. The frequency distribution table is given below.

Calculate the Mean Mass

Answers

sharon kalunda answered the question on April 29, 2019 at 12:02

Answer Attachments

Next: Illustrate the action of hydrogen sulphide with hydrogen peroxide.

Previous: A trader bought 360 trays of eggs at shs. 120 per tray. He later discovered that 8% of the eggs were bad and could not be...

View more Mathematics Questions and Answers | Return to Questions Index

Exams With Marking Schemes

Related Questions

Factorise completely the expression. 3x²y² – 8xy - 51 (Solved)

Factorise completely the expression.
3x²y² – 8xy - 51

Date posted: April 29, 2019 . Answers (1)
A rectangular locker top cover has dimensions 62cm by 28cm. Find the volume traced by the top cover of the locker when its moved 60⁰... (Solved)

A rectangular locker top cover has dimensions 62cm by 28cm. Find the volume traced by the top cover of the locker when its moved 60⁰ about its fixed point and horizontal position

Date posted: April 29, 2019 . Answers (1)
Simplify the expression given below (Solved)

Simplify the expression given below

Date posted: April 29, 2019 . Answers (1)
The ratio of Mueni’s earnings to Kilonzo’s earning is 5:3. If Mueni’s earnings is increased by 17% her new figure becomes Kshs. 18,000. Find the corresponding... (Solved)

The ratio of Mueni’s earnings to Kilonzo’s earning is 5:3. If Mueni’s earnings is increased by 17% her new figure
becomes Kshs. 18,000. Find the corresponding percentage change in Kilonzi’s earnings if the sum of their new
earnings is Kshs. 24,600.

Date posted: April 29, 2019 . Answers (1)
Calculate the perimeter of the figure below, given that AB = BC = BE = 3.3cm (Solved)

Calculate the perimeter of the figure below, given that AB = BC = BE = 3.3cm

Date posted: April 29, 2019 . Answers (1)
Evaluate without using a calculator (Solved)

Evaluate without using a calculator

Date posted: April 29, 2019 . Answers (1)
4x²- 10x + 4y²+ 12y-1 = 0 represents a circle centre C (a, b) and of radius K. Find the values of a, b and... (Solved)

4x²- 10x + 4y²+ 12y-1 = 0 represents a circle centre C (a, b) and of radius K. Find the values of a, b and K.

Date posted: April 29, 2019 . Answers (1)
Solve for x given that; (Solved)

Solve for x given that;

Date posted: April 29, 2019 . Answers (1)
A merchant blends 350kg of tea costing Sh. 84 kg with 140kg of tea costing Sh. 105 per kg. At what price must he sell the... (Solved)

A merchant blends 350kg of tea costing Sh. 84 kg with 140kg of tea costing Sh. 105 per kg. At what price must he sell
the mixture to gain 25%

Date posted: April 29, 2019 . Answers (1)
Given that x = 31.01, y = 12.9 and w = 0.0023. Calculate the percentage error of ??/xw,give your answer to 4 dp. (Solved)

Given that x = 31.01, y = 12.9 and w = 0.0023. Calculate the percentage error of 𝑦/xw,give your answer to 4 dp.

Date posted: April 29, 2019 . Answers (1)
Peter operates a printing firm and the cost of printing a book is partly constant and partly varies as the number as pages. If a book... (Solved)

Peter operates a printing firm and the cost of printing a book is partly constant and partly varies as the number as
pages. If a book has 200 pages, the cost in sh 400 and if it has 100 pages, the cost is sh 240. Find the cost of printing a
book with 400 pages.

Date posted: April 29, 2019 . Answers (1)
The first, the third and the seventh term of an increasing arithmetic progression are three consecutive terms of a geometric progression. If the first term... (Solved)

The first, the third and the seventh term of an increasing arithmetic progression are three consecutive terms of a geometric progression. If the first term of the arithmetic progression is 10, find the common difference of the arithmetic progression

Date posted: April 29, 2019 . Answers (1)
Two towns A and B are 200m apart. From the top of A, the angle of elevation of the top of B is 15⁰. From... (Solved)

Two towns A and B are 200m apart. From the top of A, the angle of elevation of the top of B is 15⁰. From the top of B,
the angle of depression of the bottom of A is 400. Find the height of A.

Date posted: April 29, 2019 . Answers (1)
The figure below shows a circle center O, radius 10 cm. The chord PQ = 16cm. Calculate the area of the unshaded region. (Solved)

The figure below shows a circle center O, radius 10 cm. The chord PQ = 16cm. Calculate the area of the unshaded region.

Date posted: April 29, 2019 . Answers (1)
If x is a positive integer find all the integral values of x given that: (Solved)

If x is a positive integer find all the integral values of x given that:

Date posted: April 29, 2019 . Answers (1)
The area of a rhombus is 60cm². Given that one of its diagonal is 15cm long. Calculate the perimeter of the rhombus. (Solved)

The area of a rhombus is 60cm². Given that one of its diagonal is 15cm long. Calculate the perimeter of the rhombus.

Date posted: April 29, 2019 . Answers (1)
If tan X = 4/3 , find the value of sin²X + cos X without using tables or calculator. (Solved)

If tan X = 4/3 , find the value of sin²X + cos X without using tables or calculator.

Date posted: April 29, 2019 . Answers (1)
Kamau salary increased from Ksh 16,800 to 18,00 in the month of April. State the ratio in which it changed. What was the percentage change in... (Solved)

Kamau salary increased from Ksh 16,800 to 18,00 in the month of April. State the ratio in which it changed. What was
the percentage change in his salary? Leave you percentage answer to 4. s. figures.

Date posted: April 29, 2019 . Answers (1)
Make a the subject of the formula: (Solved)

Make a the subject of the formula:

Date posted: April 29, 2019 . Answers (1)
Find the equation of a straight line which is equidistant from the points A (2, 3) and B (6, 1). Express your answer in the form... (Solved)

Find the equation of a straight line which is equidistant from the points A (2, 3) and B (6, 1). Express your answer in
the form x/a + y/b =1 where a and b are constant.

Date posted: April 29, 2019 . Answers (1)