# A College Algebra

Ginn, 1902 - Algebra - 530 pages

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### Contents

 CHAPTER 1 CHAPTER VII 80 CHAPTER VIII 89 CHAPTER X 111 CHAPTER XII 147 CHAPTER XIV 164 CHAPTER XVI 182 CHAPTER XVIII 202
 CHAPTER XXI 244 CHAPTER XXIV 299 CHAPTER XXVI 357 CHAPTER XXVII 378 CHAPTER XXIX 391 CHAPTER XXX 415 CHAPTER XXXI 467 CHAPTER XXXII 493

### Popular passages

Page 184 - If the product of two numbers is equal to the product of two others, either two may be made the extremes of a proportion and the other two the means. For, if ad = be, . ,. ... ' , ' ad be by dividing by bd, bd=bd
Page 257 - This is the same as the number of permutations of n things taken r at a time, and hence r!C(»,r) = P(«,r) '-- It is interesting to know that the number of combinations of n things taken r at a time is the same as the number of combinations of n things taken n — r at a time.
Page 79 - A person engaged to work a days on these conditions : for each day he worked he was to receive b cents, and for each day he was idle he was to forfeit c cents. At the end of a days he received d cents. How many days was he idle ? 76.
Page 90 - In the first term the exponent of a is the same as the exponent of the power to which the binomial is raised, and it decreases by one in each succeeding term.
Page 140 - A number consists of two digits whose sum is 13, and if 4 is subtracted from double the number, the order of the digits is reversed. Find the number. 58. The sum of the digits of a certain number of two figures is 5, and if 3 times the units, digit is added to the number, the order of the digits will be -reversed.
Page 182 - The first term of a ratio is called the antecedent, and the second term the consequent.
Page 519 - The sum of the lengths of any two sides of a triangle is greater than the length of the third side.
Page 186 - In a series of equal ratios, the sum of the antecedents is to the sum of the consequents as any antecedent is to its consequent.
Page 33 - Then divide the first term of the remainder by the first term of the divisor...
Page 131 - A detachment of an army was marching in regular column, with 5 men more in depth than in front ; but upon the enemy coming in sight, the front was increased by 845 men ; and by this movement the detachment was drawn up in 5 lines.