Circle proofs Study guides, Study notes & Summaries

Quadratic Formula Domain The set of possible inputs for a function. Range The set of possible outputs of a function. Discriminant b² - 4ac > 0 then two distinct real roots. b² - 4ac = 0 then one repeated real root. b² - 4ac < 0 then a quadratic function has no real roots. Types of Lines for Regions If y < f(x) or y > f(x) then the curve y = f(x) is not included in the region, and is represented by a dotted line. If y ≤ f(x) or y ≥ f(x) ...

This document includes how to solve grade 12 proofs. The line segment joining the centre of the circle and the midpoint of a chord is perpendicular to the chord. An angle at the centre of a circle equals twice an angle at the circumference subtended by the same arc. The opposite angles of a cyclic quadrilateral are supplementary. The angle between a tangent to a circle and the chord drawn from the point of contact is equal to the angle in the alternate segment. Ratio of areas equals ratio of bas...

Database Design Using Entity-Relationship Diagrams by Sikha Bagui and Richard Earp ISBN:4 Auerbach Publications © 2003 (242 pages) With this comprehensive guide, database designers and developers can quickly learn all the ins and outs of E-R diagramming to become expert database designers. Table of Contents Back Cover Comments Table of Contents Database Design Using Entity-Relationship Diagrams Preface Introduction Chapter 1 - The Software Engineering Process and Relational Da...

Desktop publishing The Digital Revolution— and Beyond During the last quarter of the twentieth century and the first decade of the twenty-first century, electronic and computer technology advanced at an extraordinary pace, transforming many areas of human activity. Graphic design was irrevocably changed by digital computer hardware and software and the explosive growth of the Internet. Many years earlier, the Industrial Revolution had begun fragmenting the process of creating and printin...

1. Order of a matrix Number of rows by number of columns 2. Square matrix Matrix of order NxN 3. Leading diagonal Diagonal of matrix from top left to bottom right 4. Conditions for two matrices to be equal - must have same order - each element in one matrix must be equal to the corresponding ele- ment in the other 5. Matrices which you can't add are... non-conformable for addition 6. Matrices which you can't multiply are... non-conformable for multiplication 7. Matrix...

A-level FURTHER MATHEMATICS Paper 1 Time allowed: 2 hours For Examiner’s Use Question Mark 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 TOTAL Materials  You must have the AQA Formulae and statistical tables booklet for A‑level Mathematics and A‑level Further Mathematics.  You should have a scientific calculator that meets the requirements of the specification. (You may use a graphical calculator.) Instructions  Use black ink or black ball‑po...

AS MATHEMATICS Paper 1 Time allowed: 1 hour 30 minutes For Examiner’s Use Question Mark 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 TOTAL Materials  You must have the AQA Formulae for A‑level Mathematics booklet. l You should have a graphical or scientific calculator that meets the requirements of the specification. Instructions  Use black ink or black ball‑point pen. Pencil should only be used for drawing.  Fill in the boxes at the top of t...

A-level FURTHER MATHEMATICS Paper 2 Time allowed: 2 hours For Examiner’s Use Question Mark 1 2 3 4 5 6 7 8 9 10 11 12 13 TOTAL Materials  You must have the AQA Formulae and statistical tables booklet for A‑level Mathematics and A‑level Further Mathematics.  You should have a scientific calculator that meets the requirements of the specification. (You may use a graphical calculator.) Instructions  Use black ink or black ball‑point pen. ...

Electrician NCCER In-class activity Which article of the NEC covers grounding? - Article 250 What is a dropout plate? - Metal plate with a curve surface for cable to follow as it passes from the tray All of the following are common service voltages in the United States Except: - 372/575 3-Phase, 4-wire What does a GFCI breaker do? - Opens a circuit to prevent operation of an electrical device What will happen when one or more coils in a winding are grounded? - The ...

Electrical Nccer Study Set In-class activity article 250 - Which article of the NEC covers grounding? Gual - Which of the following is a 90 degree, explosion proof fitting? Dropout plate - What is a Metal plate with a curved surface for cable to follow as it passes from the tray? 372/575 3-phase, 4-wire - Are not common service voltages in the United States GFCI breaker - Opens a circuit to prevent operation of an electrical device The motor will automatically...