Direct Variation If a person buys some packets of sugar, the total cost is proportional to the number of packets bought. The cost of 2 packets at Nx per packet isN2x. The cost of 3 packets at Nx per packet isN3x. The cost of n packets at Nx per packet isNnx. The ratio of total
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Introduction to Angles of Elevation and Depression Any surface which is parallel to the surface of the earth is said to be horizontal. For example, the surface of liquid in a container is always horizontal, even if the container is held at an angle. The floor of your classroom is horizontal. Any line drawn on
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What is a Budget? A budget could be defined as the quantitative expression of any financial plan specified for a certain period. It could entail everything from planned sales volumes, resource quantities, costs and expenses, assets, liabilities to expected cashflows/profits. It basically expresses the strategic financial plans of businesses, organizations over defined time-frames. A budget
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Theorems: Angles between Two Lines Adjacent means “next to.” But we use this word in a very specific way when we refer to adjacent angles. Study these two figures. Only the pair on the right is considered to be adjacent, angles c and d. Adjacent angles must share a common side and a common vertex, and they must
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Introduction Population is defined as the total number of organisms of the same species living together in a given area at a particular time. In an ecosystem, the community is made up of many populations of different species. In population studies of a habitat, the following are usually studied: Types of organisms: This involves the
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Concept and Relationship with Quadratic Equation Exponential or Indicial Equation is a combination of indices and all other forms of equations, it is very easy to solve provided you have excellent knowledge of the laws of Indices. Rules for Solving Exponential (Indicial) Equations 1. The two sides i.e LHS and RHS of the equation must
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Alkenes These are hydrocarbons that contain at least one carbon-carbon double bond C=C. Another series of compounds is called the alkenes. They have a general formula: CnH2n where n is a positive whole number whic is equal or greater than 2 Alkenes have fewer hydrogen atoms than the alkanes. The extra valencies left over occur as
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Converting from Base b to Base 10 The next natural question is: how do we convert a number from another base into base 10? For example, what does 42015 mean? Just like base 10, the first digit to the left of the decimal place tells us how many 50’s we have, the second tells us how
Types of Presentation Good presentation can make statistical data easy to read, understand and interpret. Therefore it is important to present data clearly. i. There are two main ways of presenting data: presentation of numbers or values in lists and tables; ii. Presentation using graphs, i.e. picture. We use the following examples to show the
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Introduction Pythagorean theorem which states the special relationship between the sides of a right triangle is perhaps the most popular and most applied theorem in Geometry. The algebraic statement of the Pythagorean theorem is used to derive the distance formula in coordinate Geometry and to prove the Pythagorean identities in Trigonometry. In fact, the fundamentals
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