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A surd can be described as a root whose exact value cannot be found. It is an example of an irrational number; a number which cannot be expressed in the form: In getting the value of a surd, the decimal
Expansion of Algebraic Expressions Earlier, you read that: a(b + c) = ab + ac Example 1 Expand (2x – 3)(3x + 4) = 2x(3x + 4) – 3(3x + 4)= 6x2 + 8x – 9x -12= 6x2 – x – 12
A square is the result of multiplying a number by itself. Squares by Multiplication Find the Square of a) 3 , b) 14 , c) 245 a) 32 = 3 x 3 = 9b) 142 = 14 x 14 = 196c) 2452 = 245 x 245
A decimal is a fraction whose denominator is a power of 10. Express as decimal a) Express the following fraction as a decimal ⅜ Express decimals as fractions a) Express the following decimal as a fraction 0.355 b) Express the
Addition and Subtraction It should be noted that:a) + – = –b) – + = –c) – – = +d) + + = + As a student, please try: ( For this questions, please draw a number line as the one shown above from -14 to +14 )i) 4 + 8ii) -4 + 8iii)
When two numbers are multiplied to get a third number, the two numbers are factors.Consider: a x b = c , a and b are factors of c. c is referred to as the Multiple.A composite number is a number with more than two factors. Factors of Composite numbers a) Write
Place value of digits in numbers helps in reading and performing arithmetic operations.Example 1: A place value chart is show below: 56, 894 Hence the amount in words will be, fifty six thousand, eight hundred and ninety four. Example 2: Use the 875,
What is Agriculture? Agriculture refers to a fundamental human activity, which i...
POPULATION STUDIES Is the general activities carried out for the purpose of acqu...
CONCEPT OF SOIL AND SOIL PROFILE Soil appears very complex and thus differe...
GROUND WATER WATER CYCLE Rain falls on the earth surface in filtrates (soaks int...
THEORIES THEORY OF ISOSTASY Denudation has been going on the continents where to...
GLOBE Is the model of the earth Earth Is ball of rock partly covered by wat...
Photograph are the true image pictures showing truly appearance of the earth’s...
What is a map? Map is a scaled conventional representation of the whole or any o...
INTRODUCTION TO SURVEYING Surveying is an art or a science of measuring and reco...
Definitions of Research – Research is the systematic investigation into a...
STATISTICS Statistics is a branch that deals with every aspect of the data. Stat...
