2020-2021学年天津市红桥区九年级(上)期中数学试卷

2222222222221222212313121332学年天津市2222222222221222212313121332一选题共小题.A36x

B3+1C

x70

D

+3A

B

C

D5x

xx+1ax

+00abcAab4C4b5c1

B5bcDabc1x3A63Bx9+6D+6+6+4A+3Bx+35Dx+3+pxx2xA+2+3Cx30

B+2x0Dxx+3++1y

bxcA2B23Dxy2y2yyxyyAyy

Byy

Cyy

DyA28Cx+128

B128Dx128

111222222eq\o\ac(△,Rt)ABCBACeq\o\ac(△,)B111222222A

B60

C65

D80121AB11CD1EGHBFDHEFGHsAEsA

BC

D二填题共6小题）OA290A'x+2xx6+10x+p+q2x

2kx+0200002019kk

22221121三解题本题小题，66分，解应出字明演算骤推过）22221121ABCA50B3C1ABCAC'eq\o\ac(△,A)eq\o\ac(△,)BCeq\o\ac(△,A)eq\o\ac(△,)'B'CSx﹣3x60x+m0m为x6mx

x+3x1C2CA309012CDEFDEBCABACAExCDEFxCDEF8

AE

eq\o\ac(△,Rt)ABCCDECBADDEFBEDCBEBEBDABCax++60xA6ByCACPACDPDMl

NMN

22222222232学年天津市红桥九年级（上期中数学卷22222222232试题解析一选题共小题.xBCDBC180D1805xxx+1ax+x1abx

x+6x3D+6+50xx

+65+5pxq02x826qp13xx5D

217224831161131151214217224831161131151214xx

+c412yx51C0y321yxx447xx128Deq\o\ac(△,Rt)ABCBAC90C6060x1++x121xxDHG

262222222222722222AExAH262222222222722222EH+x+3

2sx+2．s2x203二填题本题小题，小分共分25+2+1x26x+40x41x6＝p38+q8+85ab+14ac2﹣21kk+24k247x3kxk+1

2252228628622522286286x200001+x10%x10%x

xkxxxk0x7+4kk4

三解题本题小题，66分，解应出字明演算骤推过）eq\o\ac(△,A)eq\o\ac(△,)'B'C'8eq\o\ac(△,A)eq\o\ac(△,)B'C857

518x

x1+

x1

b3ac36+24xx

x

I

2362222212314523236222221231452IIm7+60x2+20xIII2m5x4+2x2Cxyx71x2xy15x3y8x3y5Cyx﹣218C2+11AEB01230EFABCCABAB3

24122624122

AE

矩形

CF

x

x0x122

x6

2

x7x83

矩形

x

x6ACB

CDCDACDACDADEBEABACDCDCECAD+++++++180DCEABBCDEOBBHCDH

2222HBTCDBE90BDBEH90AASBHBTBHCHBTDCODEB90ACDOCDCDCDACDOCDADOCAD22.5OAB+bx+60

y+5x+7x0y6

85222C685222A66