山东教育出版社暑假生活指导七年级数学27页解方程答案
\u4e03\u5e74\u7ea7\u6691\u5047\u751f\u6d3b\u6307\u5bfc\u5c71\u4e1c\u6559\u80b2\u51fa\u7248\u793e\u6570\u5b66\u5168\u90e8\u7b54\u6848P28\uff1a1~5.CDCBD.6~11.BDDCBAP29:\u4e8c1. 3 2.\u6b63\u5341\u4e8c\u8fb9\u5f62 3.\u5e73\u79fb 4.\u7565 \u4e09\u30022.MN=10cmP30.\uff081\uff09\u2460\u5e73\u884c\u56db\u8fb9\u5f62 \u2461\u7565 \uff082\uff09\u7565P31. 1. 36\u00b0 2. B 3.BE=CFP34. 1. (x+1)(x^2+2x+3) 2. 2(y-x)^2 3. 60\u6216-60 4.a=6 b=1 c=-2 5.(x+y-1)^2 \u53cc\u51fb\u5bfc\u822a\uff08\u4e8c\uff09\u4e00\u30021~4. DBBC 5~8. CCBA \u4e8c\u30021. 6\u548c5P35 2. 0.64 3. 9 4. m\uff1c-1 5.\u00b124 6. 15.2 \u4e09\u30021\uff081\uff09x\uff1c\u4e09\u5206\u4e4b\u4e00\uff082\uff09x\u5927\u4e8e\u6216\u7b49\u4e8e-1 2.(1)3a(x-1)^2 (2)\u8fd9\u9053\u9898\u51fa\u9519\u4e86\uff0c\u6211\u4eec\u8001\u5e08\u8bf4\u5e94\u5728\u62ec\u53f7\u5916\u52a0\u4e0a\u5e73\u65b9\u53f7\uff0c\u6b64\u65f6\uff0c\u7ed3\u679c\u4e3a\uff1a\uff08b\u7684\u5e73\u65b9+c\u7684\u5e73\u65b9+4b\u65b9c\u65b9\uff09\uff08b\u7684\u5e73\u65b9+c\u7684\u5e73\u65b9-4b\u65b9c\u65b9\uff09 3.\uff081\uff093.5\u5343\u514b\uff082\uff094.0\u5343\u514b \uff083\uff09x=5 P36\u3002 1. x=14\uff0cy=18 2. 26\u5c81\u621637\u5c81 \u77e5\u8bc6\u62d3\u5c55\uff08\u4e8c\uff09\u9009\u62e9\u9898\uff1aBABA \u586b\u7a7a\u9898\uff1am\uff1e\u4e09\u5206\u4e4b\u4e03 6. 1 7. -a3 8. 2\u6216-3\u597d\u4e86\uff0c\u5c31\u8fd9\u6837\u4e86\uff0c\u5982\u679c\u4f60\u6709\u7591\u95ee\u8bf7\u52a0\u6211QQ\u53f7\uff1a1359144629 \u6211\u4f1a\u7ed9\u4f60\u6700\u8be6\u7ec6\u7684\u89e3\u7b54\uff0c\u5982\u679c\u4f60\u5728\u521d\u4e2d\u9047\u5230\u4e0d\u4f1a\u7684\u9898\u65f6\uff0c\u6211\u4e5f\u4f1a\u7ed9\u4e88\u6700\u8be6\u7ec6\u7684\u7b54\u590d\uff0c\u7531\u4e8e\u5728\u8fd9\u91cc\u4e0d\u65b9\u4fbf\u8be6\u89e3\uff0c\u6240\u4ee5\u8bf7\u52a0\u6211QQ\u53f7\u795d\u4f60\u5b66\u4e1a\u6709\u6210
C\uff0c C,120\u00b0\uff0c
\u968f\u8eab\u542c360\u5143\uff0c\u4e66\u530592\u5143
A\uff1a92*80%+360*80%=361.6
b:360\u53ef\u8fd42\u5f2030\u5143\uff0c362\u5143
\u90fd\u53ef\u4ee5\uff0cA\u5408\u9002
A B A
P32
4.AB\u2016CE(\u5f88\u591a\uff0c\u5176\u4e2d\u4e4b\u4e00)
5\uff0c\u65b9\u7a0b\u89e3\u5f88\u7b80\u5355\uff08\u9e21\u5154\u540c\u7b3c\u95ee\u9898\uff09
6\u25b3AOC\u4e0e\u25b3BOD\uff0c\u25b3AOB\u4e0e\u25b3COD\uff0c\u25b3ABC\u4e0e\u25b3BAD\uff0c\u25b3ADC \u4e0e\u25b3BDC
\u4e00\u3001\u9519\u9519\u5bf9 \u4e8c\u3001 CDDDA \u4e09\u3001 1.\u2220ECB=\u2220ACB 2.\u5357\u504f\u897f55\u00b0 3.\u7565 4.25\u00b0 P26 \u4e8c\u3001 ADBCCDBBB
Y= -七分之四
2.X= 6
Y= -3
3.X= 三分之二
Y= -2
4.X= -二十一分之十四
Y= -七分之十八
5.X= 5
Y= 3
6.X= -12
Y=-3
ti mu
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