A system of practical mathematics; being no.xvi. of a new series of school-books |
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Αποτελέσματα 1 - 5 από τα 78.
Σελίδα 9
... note numbers or quantities , and signs which indicate ope- rations to be performed on them . 2. The first letters of the alphabet , as a , b , c , & c . , are used to denote known quantities , and the latter letters , as x , y , z , & c ...
... note numbers or quantities , and signs which indicate ope- rations to be performed on them . 2. The first letters of the alphabet , as a , b , c , & c . , are used to denote known quantities , and the latter letters , as x , y , z , & c ...
Σελίδα 13
... NOTE . The above rules will be obvious from the following consi- derations : -The first rule is simply this , that any number of quanti- ties , as 4 , and 5 , and 7 , of the same kind , will make 4 + 5 + 7 , or 16 quantities of the same ...
... NOTE . The above rules will be obvious from the following consi- derations : -The first rule is simply this , that any number of quanti- ties , as 4 , and 5 , and 7 , of the same kind , will make 4 + 5 + 7 , or 16 quantities of the same ...
Σελίδα 14
... NOTE . This rule will appear evident from the following conside- rations : -If we are required to subtract 3a - b from 5a , this means that we are to take away ( 3a — b ) from 5a ; if then we take away 3a , the remainder will be 5a - 3a ...
... NOTE . This rule will appear evident from the following conside- rations : -If we are required to subtract 3a - b from 5a , this means that we are to take away ( 3a — b ) from 5a ; if then we take away 3a , the remainder will be 5a - 3a ...
Σελίδα 15
... NOTE 1. That like signs give plus , and unlike give minus , can be shown in the following manner : -When + b is to be multiplied into + a , the meaning is , that + b is to be added to itself as often as there are units in a , and ...
... NOTE 1. That like signs give plus , and unlike give minus , can be shown in the following manner : -When + b is to be multiplied into + a , the meaning is , that + b is to be added to itself as often as there are units in a , and ...
Σελίδα 17
... NOTE . The above theorems are very important , and should be committed to memory . 12. Write by Theorem I. the squares of the following quantities , and verify the results by multiplication , ( x + y ) 2 , ( 2a + x ) 2 , ( a + 2b ) 2 ...
... NOTE . The above theorems are very important , and should be committed to memory . 12. Write by Theorem I. the squares of the following quantities , and verify the results by multiplication , ( x + y ) 2 , ( 2a + x ) 2 , ( a + 2b ) 2 ...
Άλλες εκδόσεις - Προβολή όλων
A System of Practical Mathematics: Being No.XVI. of a New Series of School-Books Scottish School-Book Assoc Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2016 |
Συχνά εμφανιζόμενοι όροι και φράσεις
ABCD acres altitude annuity base bisected breadth bushels cask cent centre chord circle circumference coefficient common Cosec Cosine cubic denominator depth diagonal diameter difference distance divided divisor draw equal equation EXAMPLE EXERCISES feet figure Find the area Find the sum Find the surface fraction frustum gallons gauge given greater height hence hypotenuse inches LADC latitude least common multiple length less logarithm miles Multiply number of sides parallel Parallel Sailing parallelogram parallelopipeds perpendicular plane Plane Sailing poles polygon prism Prop proportional PROPOSITION pyramid quotient radius ratio remainder right angles RULE sailed SCHOLIUM Secant Cotang segment side AC Sine slant height solid angles specific gravity square root station straight line subtract surd surface and solidity Tang tangent THEOREM trapezium triangle ullage unknown quantities yards
Δημοφιλή αποσπάσματα
Σελίδα 122 - If two triangles have one angle of the one equal to one angle of the other and the sides about these equal angles proportional, the triangles are similar.
Σελίδα 113 - The first of four magnitudes is said to have the same ratio to the second, which the third has to the fourth, when any equimultiples whatsoever of the first and third being taken, and any equimultiples whatsoever of the second and fourth; if the multiple of the first be less than that of the second, the multiple of the third is also less than that of the fourth : or...
Σελίδα 77 - A plane rectilineal angle is the inclination of two straight lines to one another, which meet together, but are not in the same straight line.
Σελίδα 78 - When a straight line standing on another straight line makes the adjacent angles equal to one another, each of the angles is called a Right Angle; and the straight line which stands on the other is called a Perpendicular to it.
Σελίδα 82 - ... is supposed . to be divided into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds. Degrees, minutes, and seconds, are designated respectively, by the characters ° ' ". For example, ten degrees, eighteen minutes, and fourteen seconds, would be written 10° 18
Σελίδα 78 - A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference.
Σελίδα 134 - To draw a straight line perpendicular to a plane, from a given point above it. Let A be the given point above the plane BH ; it is required to draw from the point A a straight line perpendicular to the plane BH.
Σελίδα 116 - ... of the base, have the same ratio which the other sides of the triangle have to one...
Σελίδα 69 - When any number of quantities are proportionals, as one antecedent is to its consequent, so is the sum of all the antecedents to the sum of all the consequents.
Σελίδα 123 - Weigh the denser body and the compound mass, separately, both in water and out of it ; then find how much each loses in water, by subtracting its weight in water from its weight in air ; and subtract the less of these remainders from the greater. Then...