数学专用名词.docVIP

Positive number 正数 Negative number 负数 Rational numbet 有理数 Number axis 数轴 Origin 原点 Opposite number 相反数 Absolute value 绝对值 Power 幂 Base number 底数 Expoent 指数 Approximate number 近似数 Signifcant digit 有效数字 Monomial 单项式 Coefficient 系数 Degree of a monomial 单项式的次数 Polynomial 多项式 Tern 项 Constant tern 常数项 Degree of a polynomial 多项式的次数 Integral expression 整式 Equation 方程 Linear equation with one unknown 一元一次方程 prime numbers 质数 natural numbers 自然数 integer 整数 add 加 reduce 减 multiplication 乘法 division 除法 1。the sum of two numbers is 28.find the numbers if the sum of their squares is a minimum. 两数之和为28。如果两数之积为最小值，两数分别是多少？ 2。two numbers have a difference of 16.. find the numbers if the result of adding their sum and their product is a minimum 两数之差为16。如果两数的和与积之和为最小值，求两数分别是几。 3。a uniform border on a framed photograph has the same area as athe photograph. what are the outside dimensions of the border if the dimensions of the photograph are 25 cm by 20 cm . 一个均匀宽度的相框的面积与里面相片的面积相同。若相片长20厘米，宽25厘米，求相框外围的的长宽。 4。a bus company carries about 20000 riders per day for a fare of 90 $ a survey indicates that if the fare is decreased. the number of riders will increase by 2000 for every 5$ of decrease. what ticket price would result in the greatest revenue ? 一个公交车公司每天载客量为20000，每人每张票价为90元。某调查问卷显示，如果票价降低，每降低5元，载客量将增加2000人。为了最高的利润，公司应该把票价定在多少元？ 5。a lifeguard marks off a rectangular swimming area at a beach with 200 m of rope. what is the greatest area of water she can enclose ? 一个救生员用一根200米长的绳子围出一个长方形的游泳面积。她能围出的最大的面积是多少？  Mathematic Forms 数学式 　　(1) Addition 加法 　　1+2=3 One and two are