A Higher AlgebraGinn, 1891 - 577 σελίδες |
Άλλες εκδόσεις - Προβολή όλων
Συχνά εμφανιζόμενοι όροι και φράσεις
9 a² a²b a²b² a²c a²x a²x² a³b ab² ab³ ac² ax³ b²x cents Clear of fractions colog Complete the square convergent Equate values EXERCISE Extract root Extract the root Find the number given equation Hence log log minute-spaces in arc Multiply negative root number of days number of dollars number of feet number of gallons number of hours number of miles number of minute-spaces number of pounds number of shot number of yards positive root quotient reduced equation second numerator Simplify Substitute value Subt Subtract Sum of fractions sum of numerators third numerator Transpose and combine value of x Whence whole number x²y x²y² x³y xy² xy³ ах
Δημοφιλή αποσπάσματα
Σελίδα 138 - A person has a hours at his disposal. How far may he ride in a coach which travels b miles an hour, so as to return home in time, walking back at the rate of c miles an hour ? 43.
Σελίδα 440 - Of three numbers in geometrical progression, the sum of the first and second exceeds the third by 3, and the sum of the first and third exceeds the second by 21. What are the numbers ? 16.
Σελίδα 152 - 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 с cents. At the end of a days he received d cents. How many days was he idle ? 76.
Σελίδα 405 - A railway passenger observes that a train passes him, moving in the opposite direction, in 2 seconds ; whereas, if it had been moving in the same direction with him, it would have passed him in 30 seconds.
Σελίδα 37 - A is three times as old as B, and 19 years hence he will be only twice as old as B. What is the age of each ? 31.
Σελίδα 150 - A cask contains 12 gallons of wine and 18 gallons of water ; another cask contains 9 gallons of wine and 3 gallons of water. How many gallons must be drawn from each cask to produce a mixture containing 7 gallons of wine and 7 gallons of water ? 71.
Σελίδα 442 - There are four numbers in geometrical progression, the second of which is less than the fourth by 24 ; and the sum of the extremes is to the sum of the means, as 7 to 3. What are the numbers ? Ans.
Σελίδα 414 - The volume of a pyramid varies jointly as the area of its base and its altitude. A pyramid, the base of which is 9 feet square and the height of which is 10 feet, is found to contain 10 cubic yards. What must be the height of a pyramid upon a base 3 feet square in order that it may contain 2 cubic yards ? 20.
Σελίδα 351 - To divide a given straight line into two parts, so that the rectangle contained by the whole and one part may be equal to the square on the other part*.
Σελίδα 150 - A trader maintained himself for 3 years at the expense of $ 50 a year ; and in each of those years augmented that part of his stock, which was not so expended by one-third thereof.