2022-2023学年河北省石家庄市桥西区七年级（下）期末数学试卷（含答案）

2022-2023(T)

I.tillInXi,RlJ-êW-4aD-4/>.“□”)

A.>B.<C.>D.=

2.)

A.3,4,8B.4,7,11C.5,4,12D.4,6,9

3.^*‘x80x2=(%3)2(^O)”)

A.xB.4-C.+D.-

'X^®

--------------1

A.®B.®c.®D.®

5.M,ÏEAABCf.AB=8,AC=5,ADArl4^.51UABD^

△ACDÉfi^KZ^tf)

A.2

B.3

C.4

D.5

6.(3a3)2■a3=32•(a3)2•a3=9a6•a3-9a9,

)

A.B.c.WJÎ^ÆWJD.MWOJ

7.r«TW{3x+4y=15®ET'hgiiWI.)

x-2y=-5(2)

A.®-®x3B.®+@x3C.©+©x2D.®-®x2

8.2022*f-3£]5EL

202111475fcÆ.L8.1%.^114

BT^Z5>9()

A.114x108B.114x1012C.1.14x1012D.1.14x1014

9.(iuli,Æ—3ï¥M^SÀ—ïlOOWÛWfô,

A.18°

B.70'

C.72°

D.108°

10.%n,kftïEM,>2+2+-+2>W2=()

A.2knkB.k2nC.2nkD.2nk

11.M.)

A.zl±jZ2£WO

B.Zl-*5z3<IW;ft

C.Z1±ÊÎZ4>|W^

D.zB^zD^R^rtÆ

12.WiO)

.A.120°B.105°C.60°D.45°

•\13.AE5BDtftë.ËÀhC,KzA,zB,zEfëJW

4*ffi»zDÉWb,fàïEFD=iio\««œi.TJiJ^

^zD*/b(WÆiOm£

A.i^A10°B.M'J'10°C.±^^15°D.Mzhl5°

4X+1

14.^^ag^<1âWft^x>l.Mm««()

A.m>1B.m<1C.m>0D.m<0

y=4-a

15.B»®x,y^omg^=3,®^a=-21tf,X,

fflM;(D^a=m,^MW^M^®x+y=4-aM;®^x,y^iEm.-|<

a<l;£4>lEfàâ<bt()

A.@®B.®(2)C.®@D.®@@

16.M1,ma//h,EABC^ÿlE.^,tiAfc^&al.,ÿJBC&^&bl.,^AABC

itiBC^fl^mBCbr®K-¥WïijAA.B.C,;2,

W3Jffl3,-,)

AA,aAA,aAA

BB,CC{BB\CC\BB,CC{

(lîil)(Rl2)(1^3)

A.8092B.6070C.4046D.2023

17.^x______Ht,

4

18.tin®,OU,

-^S^aM-â-,^138’ÉKjWW^M'â-,Mzi=

19.

K1+6tz44x+Z.A2=180’,

S2fÛtzA+rA2+zA3=360’,

|?l3t’^jzAî+zA2+ZA3+zA4=540’,

g|4+zA2+z/l3+Z44+ZA5=’,—

11

fellttfi:?!)!],f?l10'IÉKlZ.Aj+ZA2+Z.A3+—4-Z.AJQ+z.A41=’.

20.^WI3ï^:

(l)3a2-6a-,

(2)x2-25y2.

f4(x+1)<7x+13

21.^x-8,

x-4<-—-

22.CF'ZDE^tiF.

(1)WCFSABMQLSJ&,#WÉ;

(2)5$z£)FCâ<JJW.

23.ÆOîMM:B^(«+2)2+3(a+l)(a-l),

ôbfBJÆT^vx;

24.“□”WJtM.

4

(l)flllJE“□”«3,iWM-7C-^^Éâgx^y=_8;

(2)?r^ffiiÆ:“«^r,x,yÆ-rtfflJxit”WWMM

25.“-t—”&Û<ÆH,

15t.

(2)SW^i+.£»W^i$AMtnT40A,ÆWfifflt

A®J9fW#in^WW^.±âWM,

26.(1)$U|?]1,4$—ABCi&fCMSAB±fôC^,%/.CAB

70°,RlJzCAD=°;

(2)M2,W/tABCWiD,ABfllAC±),

A^UâA'S'â’,^ZA=7O°,P!!|zl+z2=°;

(3)to@3,BC4UBE4UBI^,

®Z.CBDtfj&&.£.£A>!W&BÉISÈi

®^1^Z/SD=58°17,ARZ/WCMM.

(|?|l)(|?]2)(|?b)

(aa+av+jy)-(os+av+av)=

ajv^_aat'vjpfl

‘GD=Ga■■

•frWv--:W

a[^-g]-ç

•wwwow‘mui

■?1.¥?fiS#lu

•o--m

*>'^w‘WHWW[i/mi

D(W^lP

■a:W

tY—y_L_Y•

9A—zx.gA..

‘9x=z(£%)[^]

a[^<]£

'G:W

‘W^ÇfHâéiÿH^‘6<9+fr'G

•>'®W>k‘Zl>WS'□

‘iT=z+i/'a

*8>t+£'vSW

aL^J7

‘W&TOlhk»W*

•M^raMda‘WW£flf^M¥^±

■a:w

■Qtz->V^~V

‘q<»:.

‘owkiw^*>k‘ioi-TO£±sm:M[é/mi

a(W^li

•JW

‘oZZ=17=£7

‘0O8I=JGK7+Z7V

'QV//ja■■

‘0O8T=JGK7+17•••

‘03//av

D[W^]6

•W¥WWW¥>W

""W‘oi>kl>‘uOix

•JkdmOW‘i

‘W"‘oi>kl>ikM’uOixo^o-‘#W¥»æétëÊtl

o:W

’ttOTXfrl'T=OOOOOOOOOOOOfrll=7J^friI:iW[J^M]

a[W^l8

•^W>WDm^Y^WW

•Isda?^WWTCWWWiV

•J’-m

(T)Ç—=K.7—x

‘ZX@+®TO^WW!^W‘<‘ABQST=+X£)WB^

D[W^l'L

‘WiomioWWK*ÏW‘WWMl15#W

D

‘E•zQk)•z£=E»•z(k€)»

a:w

S

‘M-www'tt^‘£»-Z(£»)-Z8=£»-Z(£»8)M[4/mi

a[W^J'9

•WM44W3

•WWJVÉrffvWWW^^WJGVvn^^^agy

a:w

‘£=

8-8=

jv-av=

Qj-av-av-aa+av+av=

+41=Z.ADC+42=180°,nj^z2.

10.[^MlA

(WffiJW:V(2+2+•+2>n<A2=2n,

■■■(2n)k—2knk,A«SM-

Wfë:A.

54n2WSIJ2n,MM^i4â<i^^6<jig«OiJi+MBPnT.

H.c

[MlW-:Æzl-^Z2^Mft,ÉfeATO^^;

B.Z1^Z3^|HHÈÆ>ifcBWlB-®®;

Z).zB±3zD^|Hj^rtÆ>

C.

RlfôÆ,iWÆ,l^rtAlWŒHWrW.

isjfâÆ,|S)^I*IÆ,

12.B

LWtJrl

W:&œ.

Z2=90°-45°=45°,

Z1=Z2+60°=45°+60°=105°.

M:B.

[$<1

^H3Z2,

13.B

[Wr]M:të^EF,3tCD^£G,$U|Î]:

7/.ACB=180°-50°-60°=70°,

/./.ECD=/.ACB=70°.

v/.DGF=/.DCE+/£,

zDGF=70°+30°=100°.

v/.EFD=110°,/EFD=zDGF+ZD,

•••zD=10°.

M'+’ZD=20°,

•••z£)«'>10°.

i&î&sB.

WézEF,MÉ

^JfflzEFD=110°,nJWzDÛ<j

»,ÀUfmtBÉëtè.

14.[^MlD

(WtfflW:Élx+4<4x+1W:x>1,

Èx—m>lf#:x>m+l,

>1,

•••m+1<1,

WWm<0,

D.

15.D

(W]M-:^S{X+3y=4~“®,

x—y=3a(2)

4y=4—4a,BPy=1—a,

®+®x3W:4x=8a+4,HPx=2a+l,

âa=-2Pt,x=-3,y=3,x,iâl!ll®jEfiÆ;

=1H©x=3,y=0,Jjfii'J'jx+y=3,

ÎEx=3,y=0fU»£ü=3+0=3=©ü,&^®îEfà;

=Uy^»,rfa+1>°,fêfW-|<a<l.M®IEfô;

<■1-a>02

MMMW®®@,

AA©D.

BRrOW-lJW.

16.[g£]A

[tëMfrll?:«OlM1WmiOiWWMxi

©,

3B2©®W^iiHÆM©i(A8=4x2©,

&3=4x3©,

KÜB2023©@«iàHW©»J4x2023=8092(©),

ïftfê:A.

WfêMWtBi-©,M—©,B=©S^©^üHÆJF^©^,â«,OtfÆ

IttmPnT.

17.[£*]>1

[M+Jf]W:^<o,

4

m-.x>|.

>5.

BP^<0,W©^^BPW«.

44

î±!^.

M©^MM©^5£W»©M:

(1)©^5W«Ü|ë]ntJjp.En£MiRJ|R]©$;

(2)©^Û<]MRww*mw.isj-©im©^wAF«J©3e-,

(3)©^Wffiü|ë)wœElR--©^^©^^InJA©.

18.78

‘«os=ay‘.St=3337■■(z)

■33//av■■

*.st=3337=J8vy•••

‘.St=38V7■■

7

‘.st=3337-=3337=3337•••

‘.06=3337‘3337^33■■

‘3V//33(ï)[W^l’ZZ

Jig±¥^P¥¥¥:¥ffeJ‘¥¥vk¥/¥

vf/|g|-¥^¥lêl„tw-WIW

•iOMBW1iW¥¥''P¥

¥^teJ4«¥¥¥¥'¥^¥[§1'¥Wfel=¥!□»WSW-ÿHIW(iOl

■I:¥MfW¥WMW^±r-

‘Z>x>£-^iOm*"

ç

*z>x

‘£-<x‘£T+%£>(l+x)t^±M[^1IZ

•I«daM+uœ-ï¥W¥ii/r^(z)

!âida^^H>¥WM(T)[JO]

■(/S-x)(/Cs+X)=^^[(z)

!(Z-»)»£=^^ï(l):w[W^l’OZ

•wo-^™^&E|3W¥

•^^#Iuda

'.0081‘eOZZ

■.0081=.081X(T-TI)=llK7+0Iy7+-+£V7+7W+^^tjaOI®

-‘.0ZZ=.081x(i-s)=SV7+*V7+£V7+ZV7+^7^frg

‘.OtS=.081x(T-t)=^7+ZV7+zyv+1V7^4J£®

‘.09E=.081X(l-£)=ZV7+ZV7+xy7^t)aZg

ZT:

‘.081=.081x(I-z)=V7+y7^L|j[®àK[1O1

0081OZZ.'61

‘WW

•WWIn^SOîÊL^iïiM

•8Z

•.8Z=.09-.8£T=17:iW[JO]

•••ADFC=180°-ZD-ADCF=105°,

•••ZDFCÉI<J«^1O5°.

(WFrl(l)O^W^â<JÆ5tWWzFCF=zDCF=45°,OÏWWZÂBC=Z.FCE=45°,

RS^5FIT0TW/1B//CF,BPRTW^;

(2)fiJffl(i)Éfi£îfè,Wi+«apww^.

23.[^]®

[WffilW:

®:

(2)(a+2)2+3(a+l)(a-1)

=a2+4a+4+3(a2—1)

=a2+4a+4+3a2-3

=4a2+4a+1,

âa=-1$,

JM^=4x(-1)2+4x(-1)+1

=4—4+1

=1.

(l)»^^¥^^5A^J®rKPnI;

/¥■

24.r^](i)fx-y=4®,

l3x+y=-8@

(2)+®f#:4x=-4,

WW:X=-l,

JEx=-1R˨W:-1-y=4,

WW:y=-5,

gïZ4:

(2)i£“□”^ja,

••■Xxy

•••ÏCx=-yfÇÀx-y=4W:-y-y=4,

WW:y=-2,

BRx=2,

=!_2,

^Aax+y——8W:2a—2=—8,

WM:a=-3,

BPIFJ^“□”M-3.

[W-t/rl(1)®+®MHJ4X=-4,^HJX,JEX=-lRAlD^tByBRnJ;

(2)tEx=-yftAx-y=4^Hj