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3.5.1 Try some yourself

1 Give the appropriate rounding for each of the values below:

  • (a) Carpet floor area = 26.456 sq metres

  • (b) Interest earned = £109.876 5439

  • (c) Bill for £84.90 shared by
    Author(s): The Open University

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3.1.1 Try some yourself

1 In a supermarket the bill comes to £8.70, and you have discount coupons worth £3.50. The assistant says ‘that will be £12.20 please’. Is she right?

Answer

No.
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1.4.1 Try some yourself

1 Round a measurement of 1.059 metres:

  • (a) to the nearest whole number of metres;

  • (b) to two decimal places;

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1.1 Rounding in daily life

The English mathematician Charles Babbage, father of modern computing, once wrote to Tennyson regarding one of his poems:

‘In your otherwise beautiful poem,’ Babbage wrote, ‘one verse reads,

Every moment dies a man,

Every moment one is born.

‘If this were true, the population of the world would be at a standstill. In truth, the rate of birth is slightly in excess of that of death. I would suggest:


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7.1:Relative and absolute comparisons

The distinction between relative and absolute comparisons is an important one that has run through this Unit. Here, its meaning and significance will be made more explicit. The subsection begins with examples which illustrate the difference between absolute and relative measures, and you will be asked to reflect on why calculating in relative terms is often a better way to make a fair comparison.

Start with a simple example based on comparison of births between countries. In 2002, there
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1.3.5 Generalising the formula for the mean household size

This method of calculating the mean may be summarised as follows.

The frequency of a household size is the number of responses corresponding to that size. The sum of the frequencies is the total number of households.

One use of symbols in mathematics is in provi
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4.1 Understanding the question

Before you can attempt a question, you must read and understand it. This may sound obvious but you will need to know, before you start, what is expected by way of an answer. In particular, you will need to know the meaning of the instructions contained in the question. This section contains a discussion of the precise meanings attached to words like ‘find’, ‘show’, ‘write down’ and ‘determine’ in mathematics questions. The different types of instruction are illustrated by posi
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5 Example of a straightforward subtraction

In the example below of a straightforward subtraction, in every column the digit at the top of the column is bigger than the digit at the bottom. Click on each step in turn to see how to carry out the calculation.

4.8 General equation of a conic

You have already met the parabola, ellipse and hyperbola. So far, you have considered the equation of a conic only when it is in standard form; that is, when the centre of the conic (if it has a centre) is at the origin, and the axes of the conic are parallel to the x- and y-axes. However, most of the conics that arise in calculations are not in standard form.

We have seen that any circle can be described by an equation of the form

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3.2 Post-audio exercises

Exercise 42

Let u and v be the position vectors (6, 8) and (−12, 5), respectively.

  • (a) Sketch u and v on a single diagram. On th
    Author(s): The Open University

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Management: Perspectives and Practice
HR, Marketing, Finance, Operations and Project Management are all key functions of an organisation. These short audio perspectives give an insight into the roles in these areas and how they interact with the rest of the organisation, with examples of common problems, challenges and difficulties that are faced. This material forms part of The Open University course B716 MBA stage 1: Management: Perspectives and Practice.Author(s): The iTunes U team

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Drawn from Courtly India: The Conley Harris and Howard Truelove Collection
December 6, 2015 - March 27, 2016: This exhibition presents masterful drawings from the royal courts of northern India. Lovingly amassed by artist Conley Harris and architectural designer Howard Truelove, the collection features practice sketches, preparatory drawings, subtly modeled scenes, and lightly colored compositions created between the 1500s and 1800s. With images at different stages of completion, the collection allows for a fascinating look at Indian workshop practice. Alth
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Introduction

This course explores the topic of climate change and global warming. We will begin by exploring how the Earth's global mean surface temperature is determined through a global “balancing act” of the rate of energy that comes from the Sun and the rate at which the planet returns that energy into space. We will also discuss the natural greenhouse effect, and how this contributes to a balanced global climate. We will then go on to consider the human impact on the atmosphere, including the imp
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Copyright © 2016 The Open University

More working with charts, graphs and tables
Your course might not include any maths or technical content but, at some point during your studies, it’s likely that you’ll come across information represented in charts, graphs and tables. You’ll be expected to know how to interpret this information, and possibly encouraged to present your own findings in this way. This unit will help you to develop the skills you need to do this, and gain the confidence to use them. This unit can be used in conjunction with, and builds on the ‘Working
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The Berenstain Bears' Christmas Tree
Students will enjoy the old animated cartoon special from 1979. It's based on the book by the same name written by Stan and Jan Berenstain. This is a great resource to use in conjunction with the text in order to make book characters come to life and work on compare/contrast activities. (24:20)
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CO 1069-392-117

The National Archives UK posted a photo:

CO 1069-392-117

Location: Trinidad and Tobago




Date: 1870-1939




Our Catalogue Reference:
Author(s): nobody@flickr.com (The National Archives UK)

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Press Conference -- Doug Wojcik Introduced as Men's Basketball Coach -- College of Charleston
Doug Wojcik was introduced as the 22nd all-time head men's basketball coach at the College of Charleston on Wednesday. Wojcik joins a list of former coaching greats at the College including Athletics Hall of Famers Alfred von Kolnitz (1924-26), Ernest Wehman (two tenures from 1933-42, 1957-58), Willard Silcox, Sr. (three tenures from 1943-44, 1948-53, 1955-56), Fred Daniels (1968-70), Alan LeForce (1970-79), the program's all-time winningest coach John Kresse (1979-2002) and Bobby Cremins (2006
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A Discussion with Attorney General Eric Holder
As the nation marks the 50th anniversary of numerous civil rights milestones during the Kennedy presidency, Attorney General Eric Holder reflects on this history, the progress that has been made, and the challenges facing our nation today with NPR Legal Affairs correspondent Nina Totenberg. Copyright: John F. Kennedy Library Foundation
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Indivisible Week 8: Can Washington Fix America's Health Care System?
The American Health Care Act could be hitting its first snag. A new report released on Monday by the Congressional Budget Office found that the proposed Republican plan would force millions of people to lose coverage -- as many as 14 million people could be left uninsured by next year. And the bill is already facing a chorus of criticism from Democrats and Republicans alike. On this episode of Indivisible, hosts Anne McElvoy and Kai Wright dig into health care in America and why a workable syst
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Arduino Blink Challenge Lesson
Lesson explores computer programming and the impact of computers on society. Students build and test a program to turn a light on and off using an Arduino board. They connect the hardware, program the code, test their system, adapt it for variations in blinking times, evaluate their results, and share observations with their class. 
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