九年级上册期末数学试卷【河北真题】

22）22））2222018-2019学河省定博县年（）末学卷一选题共16小题）A1B+20C+D562xxaAx4B+1CDx367BABCBDBABacdeA

B

C

DxA

B

Cy

Dy++

yA1

B2

C3

Dxy

33

22

13

6

11

A3B2xDxOl5lO

A

B

C

DOD

60COEA

B60

C80

D120r120ArB2r

rD3rA32BC03Dyxx0DA2B

DABCDEF9ABCDEFA34B3CD2ABCDCDEF

222222222222A1

B2

C3

D6A

B27

C21cm

D20

eq\o\ac(△,t)ABC30AC4

BCDABCCFECEFGDGDG的A4B2+2D二填题共小题ax+bx+1byx1xPAPBBOCD

2222228PA

⊙OPO

三解题共小题mnmn+n232+2+0y1yx2+yx0ABXC1B1mn23bB60ABBCBEDE1BDE2ABED

ABCEAGBC1ADFACG2

DOOEACD60123BC42

+bx+4yC12BCBC3ACQ

222222222222222018-2019学年北保市野九级上期数试卷参考答案与试题解析一选题共16小题）A1B+20C+D56Axy1B+2xC+3Dx5B2xxaA1Bx1D+116210x14A367BABCBDB

36712456DABacdeA

B

C

Daeaaca

bebbb

ccdcbca

dddbda

ecee2012

x

2222222222A

B

Cy

Dy++ybx+ABCCDDA++a0yaxbx+

yA1

B2

C3

D

a0b0Dyaxayxy

33

22

13

6

11

A3B2xDxxx1xxx1

2BOl

l

A

B

C

DOlO10rlr

d5l

OD

60COEA

B60

C80

D120BOE120AOE60BOE

120CD

CDED

r120ArB2r

rD3rr2rR3r2

2rrBA32BC03DyxAABCy3DyxDx0D

A2B

DDDEOAEDaDDEEDaOEDEDOABCACOAaOCOABC

OAak2A

8ABCDEF9ABCDEFA34B3CD2DEF4

22222222DEFDEF2DABCDCDEFA1

B2

C3

DCDCDACDEFABCD90DCDEFCDABCDCDEF6A

B27

C21cm

D20ABFE

FDCEDFxcmx27B

eq\o\ac(△,t)ABC30AC4

BCDABCCFECEFGDGDG的A4B2+2DCGCGDCGDG30cos30

AC

BCDCDBC42FECEF8CD+CGDGDCDGCDCG2+4

222222222222222222BDG二填题共小题ax+bx+112++0eq\o\ac(△,)aceq\o\ac(△,)0eq\o\ac(△,)axbx+10acb40ba2byx1xP22Pxx2xy1

2222x

2xy2x1x

2P

22PAPBBOCD8PA4OcmPOcmDADECEPAPBPD++CEPA+PB8PAOPPAPBODADEBCPAPD++CD8PD++++OA3

2222222222222222OP

55三解题共小题mnmn+n232+2+02aaaeq\o\ac(△,)a250a02x+0b802x+00y1yx21x+yyx210+x+y1

AOCAOCyxy2x15ynAmAA+yx0ABXC1B1mn23bx1ABmn2S

△

AOB

eq\o\ac(△,S)

eq\o\ac(△,S)AOB3y1Bm31mnn112y+b3B31

AOBAOCAOBAOBAOCAOByx+4C0+4x4C4

△

△

eq\o\ac(△,S)

△

443kx+b3x1B60ABBCBEDE1BDE2ABEDDBCBEBCABE60BCE1BDEBADBEC60DBCBABDABE

BCEBCESAS2ABED1BCEBECBECADCEABEDABCEAGBC1ADFACG2

AEDBDAECABADFACG2

FG

BDAEADFCADFACG2ADFACG

DOOEACD60123BC412ACB90

BAC30BAEO3OBCAOC120ABCDD2BAEBAC+EACBAO3OC2

+bx+4yC12BCBC3ACQ

22222222222222x

2x00B3ACQy+22+y+yx+x+4

x2x++4x0