31 41 7 48 24 19 49 210 56 78 94 117 83 62 18 2那些是质数?那些是合数?

31 41 7 48 24 19 49 210 56 78 94 117 83 62 18 2那些是质数?那些是合数? 1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20+21+22+23+24+25+26+27+28+29+30+31+32+33+34+35+36+37+38+39+40+41+42+43+44+45+46+47+48+49+50请问答案是多少 一个非常有趣的数字四则运算问题【实际问题】将整数1-49分成以下三组：A.1 2 7 8 12 13 18 19 23 24 29 30 34 35B.5 6 11 16 17 21 22 27 28 32 33 38 39 43 44 49C.3 4 9 10 14 15 20 25 26 31 36 37 41 42 47 48并给出以下三组 用matlab拟合下面一组数据的曲线x=[1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 7 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 57 49 41 43 45 47 49哪些是质数 在长方形中画一个最大的半圆,已知半圆面积是31.4平方厘米,求长方形面积.1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1617 18 19 20 21 22 23 24 2526 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 数字排列组合1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 这些数字用11个组一组.能排多少组 android编程 数组：static final int g[][]=new int[][]{{3,16,29,42},{4,17,30,43},{5,18,31,44},{6,19,32,45},{7,20,33,46},{8,21,34,47},{9,22,35,48},{10,23,36,49},{11,24,37,50},{12,25,38,51},{13,26,39,52},{14,27,40,53},{15,28,41,54},};int a = new Ran 寻找下列数字的规律1 10 13 25 44 6 33 1243 58 49 17 28 47 31 4514 38 30 21 50 64 56 3534 54 55 51 32 40 62 169 61 37 42 57 59 53 205 60 63 3 48 29 39 826 41 22 27 18 4 52 2311 19 36 24 46 7 15 2可以追加分数二 1+3+5+7+9+11+13+15+17+19+21+25+27+29+31+35+37+39+41+43+47+49 等于 1+3+5+7+9+11+13+15+17+19+21+23+25+27+29+31+33+35+37+39+41+43+45+47+49=? -1,2,63,244,255（A )A.126 B.182 C.268 D.296195/120,182/112,169/104,156/96,( D ),39/24A.142/88 B.96/66 C.76/48 D.52/321,0,8,19,45,( A )A.80 B.62 C.54 D.14,13,17,25,31,38,41,( B )A.43 B.47 C.49 D.53 EXCEL 公式请教A1=1 2 3 4 5 6 7 B1=1A1=1或2 3 4 5 6 7 B1=1A1=8 9 10 11 12 13 14 B1=2A1=15 16 17 18 19 20 21 B1=3A1=22 23 24 25 26 27 28 B1=4A1=29 30 31 32 33 34 35 B1=5A1=36 37 38 39 40 41 42 B1=6A1=43 44 45 46 47 48 49 B1=7同时进行的 1+2+3+4+5+6+7+8+9+1+11+12+13+14+15````````1+2+3+4+5+6+7+8+9+1+11+12+13+14+15+16+17+18+19+20+21+22+23+24+25+26+27+28++29+30+31+32+33+34+35+36+37+38+39+40+41+42+43+44+45+46+47+48+49+50·································· 1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20+21+22+23+24+25+26+27+28+29+30+31+32+33+34+35+36+37+38+39+40+41+42+43+44+45+46+47+48+49+50+51+52+53+54+55+56+57+58+59+60+61+62+63+64+65+66+67+68+69+70+71+72+73+74+75+76+77+78+79+80+81+82+83+84+85+86+8 1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20+21+22+23+24+25+26+27+28+29+30+31+32+33+34+35+36+37+38+39+40+41+42+43+44+45+46+47+48+49+50+51+52+53+54+55+56+57+58+59+60+61+62+63+64+65+66+67+68+69+70+71+72+73+74+75+76+77+78+79+80+81+82+83+84+85+86+8 1到100英语单词1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 各行各列之和相等,怎么填数字?e 99 1 8 15 67 74 51 g 40 98 80 7 14 16 i h 57 64 41 4 81 f 20 22 54 56 63 j 47 85 l 19 21 3 60 62 k 71 28 m a 25 2 9 61 68 u 52 34 17 24 76 n 90 42 49 26 33 t 23 5 82 b o 48 30 32 39 66 79 6 13 95 p 29 31 38