2021-2022學(xué)年浙江省杭州市蕭山區(qū)高橋初中教育集團(tuán)九年級(上)開學(xué)數(shù)學(xué)試卷

學(xué)年浙省杭州市山區(qū)高橋中教育集九年級第一學(xué)期開學(xué)學(xué)試卷一選題本題10小題共30分A

B

C

DA6B2

D

7201530.39A3.039

B3.039104

C105

D30.39AabBb+1a+1bDb+130722xA2+3x30Cx+330

B3xDx+2xABCD6BECDDEA

B2C

D

x+a0A12a

B1aC

+1

Dx/

141516

xAC

BDaa0P1A

BC

D10ECDACEC1ABA

B

C

D二填題本題6小題共24分11m4m12DEA3020E13x+

14

/

355

15ABCDADx2BDC16ABCABDAD1CD三解題本題7小題共66分1713x+1x33+12x318ABBAC20D

12211221191m23180020Oyx+bB1b23xyy21CBBDFEF1AEBD248EF

22xkx43x+3k31k21323ABCACDDECDDECDCEFBE1FCBCDF26

CD7AD3CDABE

參考答案一選題本題10小題共30分A

B

C

D

A

6B2

D

7ABC

62D

2

C201530.39A3.039

B3.039104

C105

D30.393.03910CAabBb+1a+1bDb+1A0.5b0.4ab1bBbabb+1aCb+1+1bab1D0.4bb+1C30722

xA2+3x30Cx+330

B3xDx+2x30xxDABCD6BECDDEA

B2C

DABCDCDCEBCBECBECEBBC4DECE2

x+a0A12a

B1

1C

+1

Dxx2x+0x

xx

x+1x1212

/

x

xAC

BD16x+10x1014xaa0P1A

BC

Dy0P122+yxy0210ECDACEC1AB

A

B

C

DACFABCDACBBAC2ABE367.5180BAC18067.545AF67.5CFECFECEFABxACeq\o\ac(△,Rt)ABC

xx

+1二填題本題6小題共24分11m4mmm3

mm

mm212DEA3020E3020CBE+2050DEE5013x+aa2214

/

355

/5324/2415ABCDADx2BDC36

ABCDDyxD0yxC363616ABCABDAD1CD1

CDABACADC60CDDABDABDABDABD

BADB120CADABDADBAD1560ABCCAB90CDDBDACCDABD1三解題本題7小題共66分1713x+1x33+12x33x+1x3+32x318ABBAC20D

BC

ABCABD+DBCADABDDADBCDCDBACABCD40191m10035231800115%15100401510035%n2

1221121211221121212318001800135020Oyx+bB1b23xyy1Ayx+b113+kb22byxB0OB2

x3x

eq\o\ac(△,A)0eq\o\ac(△,A)0B21

3331x0x321CBBDFEF1AEBD248EF1ADBCADBCADADAEBD2FBCGABCDFCFDBCDeq\o\ac(△,Rt)EFGFG622xkx2

x+3k31k

1212213kkx43xkk3

4k33kk23k3

kx3x1k21k+4k0kk32

43+330ak3ck3k3k323ABCACDDECDDECDCEFBE1FCBCDF26

CD7AD3CDABE

1CDDECD45FCB3090FCB15ACBA45A+45+152CC