一道AMC数学题The real number c,b,a form an arithmetic sequence with a≥b≥c≥0.The quadratic ax²+bx+c has exactly one root.What is this root?(A) -7-4√3(B) -2-√3(C) -1(D) -2+√3(E)-7+4√3

一道AMC数学题The real number c,b,a form an arithmetic sequence with a≥b≥c≥0.The quadratic ax²+bx+c has exactly one root.What is this root?(A) -7-4√3(B) -2-√3(C) -1(D) -2+√3(E)-7+4√3 一道数学题.死活弄不出来~Let A(a),B(b),and C(c) be three points in the plane (here a,b,c are complex num-bers).Let G be the gravity center of the triangle ABC.Show that the complexnumber corresponding to G is g =(a + b + c)/3.Hint.Denote by 一道AMC的数学题,谁能帮忙解决一下5. At an elementary school, the students in third grade, fourth grade, and fifth grade run an average of 12, 15, and 10 minutes per day, respectively. There are twice as many third graders as fourth grade 问一道英语数学题的翻译!A network with n points and a segment joining each point to every other point is called a complete network of size n. If k is the number of segments in a complete netwiork of size n, which of the following is the num 求一道英文数学题!consider the linear function f(x)=ax+b.compute all ordered pairs (a,b) such that for all real numbers x,f(f(x))+f(x)=6x+60. 2005全国希望杯数学竞赛试题[一道英语数学题]For-a-real-number-a,let[a]denote-the maximum-integer-which-does-not-exceed-a.For example,[3.1]=3,[-1.5]=-2,[0.7]=0.Now let.x+1f(x)=—.x-1,then[f(2)]+[f(3)]+L+[f(100)](real-number:实数,t 一道 PASCAL的简单题目谁帮我把下面的代码每句话都帮我做个注解,要解释清楚^^^^^program 输入2个数,求最大和最小值;const n=5;typeno=array[1..n] of integer;s=array[1..n] of real;vari:integer;k:real;num:no;score:s;beg 一道英文数学题,Let f be a real-valued function of real and positive argument such that f(x)+3xf(1/x)=2(x+1) for all real numbers x>0.Find f(2003). Real is the new real的翻译 The only real The Real World 歌词 The Real Thing 歌词 The real world at The real poison of what's the real THE REAL BEARS怎么样 THE REAL SON怎么样 find the real