# General Mathematics, Book 1

Ginn, 1919 - Mathematics

### Contents

 THE EQUATION APPLIED TO FUNDAMENTAL ANGLE 111 Complementary angles 121 THE EQUATION APPLIED TO THE TRIANGLE 130 POSITIVE AND NEGATIVE NUMBERS ADDITION 150 POSITIVE AND NEGATIVE NUMBERS MULTIPLICATION 178 47 197 CHAPTER PAGE 204 54 210 GRAPHICAL REPRESENTATION OF STATISTICS 214 Practice in interpreting the bar diagram 222 56 231 151 180 170 202 178 219 192 233 195 252
 68 325 70 335 INDIRECT MEASUREMENT SCALE DRAWINGS TRIG 345 Similar right triangles 355 74 361 Verbal trigonometry problems 362 GEOMETRIC AND ALGEBRAIC INTERPRETATION 390 LOGARITHMS 424 INDEX 439 THE SLIDE RULE 451 QUADRATIC FUNCTIONS QUADRATIC EQUATIONS 462 More powerful methods of solving quadratic equations 471 Maxima and minima algebraically determined 479 455 487 Copyright

### Popular passages

Page 212 - Divide the first term of the dividend by the first term of the divisor, and write the result as the first term of the quotient. Multiply the whole divisor by the first term of the quotient, and subtract the product from the dividend.
Page 290 - If the product of two numbers -is equal to the product of two other numbers, either pair may be made the means, and the other pair the extremes, of a proportion.
Page 401 - The logarithm of any power of a number is equal to the logarithm of the number multiplied by the exponent of the power.
Page 302 - The specific gravity of road oils, road tars, asphalt cements and soft tar pitches shall be expressed as the ratio of the weight of a given volume of the material at 25° C.
Page 322 - ... cofunctions. Trigonometric ratios are suggested even in the Ahmes Papyrus (c. 1700 BC), which, as has been stated, may itself be a copy of some other collection written before the time of Moses. In dealing with pyramids Ahmes makes use of one ratio that may possibly correspond roughly to our cosine or tangent. The first to make any noteworthy progress in the development of trigonometry was Hipparchus, a Greek, who lived about 150 BC He studied at Alexandria, and later retired to the island of...
Page 152 - If two angles of one triangle are equal respectively to two angles of another triangle, the third angles are equal.
Page 315 - From the top of a hill the angles of depression of two successive milestones, on a straight level road leading to the hill, are observed to be 5° and 15°.
Page 304 - Two parallelograms having equal altitudes are to each other as their bases. 2. Two parallelograms having equal bases are to each other as their altitudes.
Page 130 - If two parallel lines are cut by a transversal, the interior angles on the same side of the transversal are supplementary.
Page 360 - taking mathematicians from the beginning of the world to the time when Newton lived, what he had done was much the better half.