该【2023届甘肃省东乡族自治县数学八上期末检测模拟试题含解析 】是由【cby201601】上传分享,文档一共【21】页,该文档可以免费在线阅读,需要了解更多关于【2023届甘肃省东乡族自治县数学八上期末检测模拟试题含解析 】的内容,可以使用淘豆网的站内搜索功能,选择自己适合的文档,以下文字是截取该文章内的部分文字,如需要获得完整电子版,请下载此文档到您的设备,方便您编辑和打印。:.
2022-2023
1.
.
2.!"#$%&'()*+,-./012%345678
9%:;<=.
3.>?***@ABC8DEF%GHI%&'()*+JKLMNO.
RS"T,2BU5AVR%WXYZ(Y/[\]^_
,`abcdeRYfgiRS"T,05-./012%345
8%j;<=Q8fg<=Qklm.
5.\]QnT,2BU5o(7pqrG(O+sTt/(tu.
(RSvw4xy48xz
1.\nAABEJACDEL{|}s%s~HEALED,
%
Lvz
A./EBC=25B.rxC>
.~HABCLAnH
2.8w508800D] J
600D] N¡.¢wx£¤¥
DW¦
%Lvz
A800600800600
B.
x+50xx50X
r800600800_600
D.
xx+50Xx-50
3.§¨-2,3©x%ª«Lv
4.¬§A(m+2,-3),B(-2,/i-4®¯yA°m-n%±²v)
.-
5.²³´µ¶2018·¸¹xº»¼½·¾¿À³200'%¸¹ÁÂ
ÃxÄ8Å|Æ·ÇLjvz
B.È¿À%200'%·¸¹
C.È¿À%200'
D.µ¶2018·¸¹:.
%ÉÊW£Lv
.±3D.±9
7.\nDËÌABC%ͧA(B(C8~β1%
WHÏÐ%Ч¯§D,°
BD%β
.-\/5
2
·AB=3,AC=5,Ñ~BC%À±ÒÓLv
<BC<<BC<<BC<<BC<8
9.ÔÕÖ³|×ØÙ|ÚÛH%ÜÝÞßàáHâN¡%l2ãäåæ
Q|çèÔÕA)ÝÞßéêë2\nDË82즷ßíîï
ðFãäíñ°¥òóôõö÷øùçúû2<hJ2 tü %ýþ»¼
%Lvz
X2<0<X3,°yi,y2,y3%ÿ
<yi<<y3<<ya<<yi<y3
11.
30
!"
#
:.
12.$,0,-,72,,%&1'(0)*+,1,
57
./#
01234%4456245
9=3,ab-2,;
14.< =$>?@ABCDEAB=18cm,BC=12cm,BF=10cm,F
M$GAB@HAM=6cm,FNFGFIJKLMNABCDEO?
PFMQRSFN,TULQRVWXYZ.
15.\]^_/+b+c5de_fgZxTx+2,ha+ijZ.
16.$k?lm\F4lmZ8,4,hFASynoZ.
17.< $AABCAB^AC,ABp5qrAB1BCsFEtD,FF
$AC@AD^DF,HN8/=30"h03=.
18.AZ4AABC=$< uvk?lmFA1Cw$y
@C0,2,ZACB=90°,AC=BC=4,kRsyx=-2rABsFD,
FPx=-2@xFH$FD***@By5MBp=4z{PBZ|}
NBPM,hu~FMlmZ.
1d46785
< 1
?v =
?$?@.@(:.
@y ¡z(x5¢'(<
2uv£¤ ¥¦§¨©dª4
1« ¬®¯@°±²
2]³z(@´µ
3\?¶Z24kB ·¸¹º»¯C¶.
20.85Z¼½¾“ÀÁ”ÃÄ$Å©ÆÇ“ÈÉ”ÊËÌ!ÍÎÏRÊË.78
ÈÐÑ=YÎÒ%B ÓÈÔyÕÖ¡z(xz×ØÙÚ²ÈÐÑ
=fÛÜy¡x×ÝÙÚ²< uv£¤ ¦§¨©dª4
1®¯PÈÐÑ=Þ±y¡x'(&ß#dà_²
2¤áyÈÐÑ=fÛÜ%B ÓÈÔâãÕÖ{zÃäBå
ÏÍÎæçPÈÐÑ=Þ±ã³ULè]Az(ÃäéêÏÍε
21.85PA>S8>Y290ë ìXZíîïXZðñ
òó$íî***@RôZ6*,/c$ðñ******@RôZ100kc/cõö
óPA>Þ÷8>6Rô¼»A18&>(íîtðñXø]³ë .
BYùdúÇ4
22.105ÇûBÌdBYù
x=2y
1<
2x-3y=2
3x+2y=3
üý
5x-6y=-23
23.105þBÿ
503005!
!"#$
%.:.
24.(10()*+,-./0123456789:4(a,b),B(c,d),;:
TCx,j)<=*=@y=AB:7C:ABDE:.F,M(-
1,8),N(4,-2),G:7(1,2)C:MNDE:.HIJ:O(3,0),
:EC/Ky=x+2L78::7(x,j)C:MEDE:.
(1);:EN12C6,G:712OP
(2)Q:7(x,y)N12yRS12xTUV3W,
(3);/KETXxY6:Z0777O/0[0\]Q:E12.
25.(12()H^0AABC9_BO`CEaX6:MBD=CE.
(1)bc,CD=BE.
(2)de:MCf-N8AC0.(KLghci.
(3)jkMln
26.HA4BC4AB=BC,ZABC=45°,8E_L4C6:E,ADLBCD,BE
R4MaX6F.
(1)Qb,BF=AC
(2);8/=3,QCE:.
rstu
448
1A
AABEACDE!"#$%&%'()*+,-A,=ED,
BE=CE,NBAE=ABE=ZAEB=NEDC=NDCE=NDEC=6f./01
EAED,2345NEBC&678+345NEBC&679:;<5AD
BC&=>?***@ABEDC&?@BCDEFAAEM!%G()*D
HIJ<K'*ABCD&LMN.
OPDQQQR/TUAC,V!"#$%&%'()*
.AE^ED,BE=CE,
ZBAE=ZABE=ZAEB=ZEDC=ZDCE=ZDEC=60°
:.NEBC=ECB
VEALED
ZAED=9Q°
:.ZBEC=360°-90°-60°x2=150°ZEAD=NEDA=45°
ANEBC=NECB=1180°-NBEC=15°,WXYAZ[\
2E1,]AABC=ZABE+ZEBC=6C+15°=75°
/BAD=ZBAE+ZDAE=60°+45°=105°
:.ZABC+ZBAD=75°+105°=180°
/.ADIIBC,WXYC^J\
3_`BEaCDFbF,cdBD.
VNEBC=ZECB=15°,ZECD=60
\-ZBCD=75°
:NBFC=180°75°15°=90°
BFLCD:.
vBE_LC>
ABED=180°-/CED-/BEC=360°-60°-150°=150°=/BEC
AEBCAEBD
BE=BE
<NBEC=/BED
CE=DE
.AEBCAEBD
:.BC=BD
.DF=CF,wLBEx/.(CD,yztuB{|P
(4)}E"N_LA),AD//BCMNLBC
~ASE1MCA[0\GMNx/.(AD`BC,yz\ABCDC1
5BH\yzB{|.
,A
:
sJ:CA[0\A[0\Rd*.m\
d*Y5BH\*+KA[0\C:.
2`A
(,8J- ¡(x+50)¢£¤~- ¡800¢y¥]
¦§¨© ¡600¢£¤y]¦aAª~«¬v.
®,¯8§¨©.° ¡x¢£¤G-.° ¡(x+50)¢£¤
- ¡800¢£¤y¥]¦R§¨© ¡600¢£¤y¥]¦a±²:
800=fgA.
7+50x
:,s´«(Wµ¶4“-.°¸§¨© ¡
50¢£¤”º»¼~«¬CV½.
3`B
/k¶:12²¬:.
OPbP(-2,1)-xh&ij!]1.
gB.
bk
lmnopqb&rs^Jtub&rsNv!P?w.
4B
xdyz?FyhLM&b&Nv,5m,n&{|:,5}~.
OPQ.,bA(m+2,-3),B(-2,)?FyhLM
./.m+2=2,=-3
P,]m=0,n=l
=-1
g]B
bk
op?FyhLM&b&rs]?FyhLM&"brs
Brs
.u?FyhLM&b&rs!P&?w.
5B
p&&+,-}~.
OP2018o9q200o&| 3
¡¢#£!¤]¥&20()o&o.
g]B.
bk
mnopp&&u&!P&?w.
6A
4¦§¨&<©]#ª«&^&§¨¢#&4¦§¨
.WX0¬®^El+¯59&4¦§¨.
OPVl2=9,
.229&4¦§¨!1.
gA.
bk
lmnopq4¦§¨&<©IZb^J°±4¦§¨§¨&<©.
7A
P²*³()*&´µ¶·¯5aABC&´µ¸¹<º¯5AC,:.
[0\¾¿W¨Àv.
®,}:AAE_LBC6:E,
²BD=3,
,A.
:
sÁÂ*iµÃÄ-7Å/0[0\49/0p.Æ
*A6Çp.CV½.
8`D
(IJ9GÈ[pqµCÉ69Ê~Ë69ºÌÍQ¬
È[pÎÏÐÑ.
®VAB=3,AC=5,
.,.5-3<BC<5+3,v2VBe<8,
D.
:
s´[0\[V3[0\789ÆÉ6È[789ÆÊË6È[
.ÒÓÃÄ[0\[V3CV½.
9`D
®Ô(,ÕÖ×ØËÙÚÛÜÕÖÖ-ÝÞß_ZËÛ4Ö<]
àáØÉâÜãº]ä_Öå_qæçZâÖ_qRËÛÌèé¼êÕÖ
Ö_q-ß_ß_¸àáë.D.
s:,TUHì.
10`D
íî¸FTUWde¬TUHìy-ìïéxi<X2<0V
XI,de¬[:y-ìïéTUðñv²¬òó.:.
OPQQQ»¼½y=k=l>0,
X
QQl½²¾&"#¿¡(¾À
VX1<X2<0<XB
:.AB¡Á(¾ÀbC¡Á¾À
/.yi<0,y2V0,yi>0,
QQQ¡Á(¾Àyx&Â6:Ã7
"1>Ä2
Ay2<yi<yi.
gD.
bk
op&!»¼½²¾Åb&rsb2Æ;Ç5½²¾W¡&¾À
A(bW¡&¾À!P}l&?w.
11C
xdyzhLM²*&Nv±,5}~.
OPP]ÈÉÊ!hLM²*\
Ë)!hLM²*\
Ì%G()*!hLM²*\
ÍÎ#)!30Ï&x)()*Ð!hLM²*.
g]C.
bk
op&ÑÒb!hLM²*&<©ºP<©ÓH!Pl&?w.
12B
ÔºÕ!ÔÀÐÖ×7.ºPÔº&<nBCºPκ&
κ!Ø& M.ÎÀ7³ÔÀÖ×7!κ:ÔÀÐÖ×
7!Ôº.El+;<Y.
22
OP0ÙÚFκ\
ÔºÎ]-W0-"#1ÛÜ&0ÝÞÂß1#3#.
g]B.
bk
opqÔº&<©àáâãÓä&ÔºÎ]72"%\å¨åÐæ&
\XAç0.**********%΢èé&.:.
êëì424
131
í¶î·,-Ï=Ï/ÏÏ./yzØïðñ&¨ò34
+.
OPP]ÏÏ=3,ab=2,
:.a2b-ab2=aba-b=2x3=6,
g}~!]L
bk
opqí¶î·³Øïðñ&¨òóô
?Nv!P&?w.
14>1cm
yz§´õå²Î"ö÷5²*yz¸¹<º¯5MN&`+.
OPø²1,
VAB=18cm,BC=GF=12cm,BF=10cm,
A^BM=18-6=12,BN=10+6=16,
.,.MN=7I22+162=1
ø²2,
VAB=18cm,BC=GF=12cm,BF=10cm,
/.PM=18-6+6=18,NP=10,
.2,MN=VI22=27106.
8+10
Vl<2ViO6
.Q.ùúû`¨ïü´ý-þÿ:.
!"
#$%&'()* +,.
15.-1
/%&01234567789:x-lx+2,;/+>+?***@AB(ab
CDEFGa+b9:.
/H*0222õöX+2õ=X2+X2
:.x2+tzx+Z?=x2+x-2,
a=l9b=-2,
2\a+b=-l.
IJKL-1.
/MN0
O
345;34567P:345;345Q6RST345US
4%V6WST345US4XYZ'[Q\.
/%&012M]y^_`abcdeCfg'*.
/H*0*LhhhMAbc1,4,
.,.MA]y^1.
IJKL1.
/MN0
O
Mbc;M]bc^+j*klm"+j)*J+,.
17°
/%&0nDBopx,f'LNB=NC=NBAD=x,ZAFD=ZC+ZCDF=x+30°,
12qrstrf'LNDAF=180°-3x,uvw(+`xSxSyz{
|fB*.
/H*0nB3opx,
'AB=AC,:.
NB=NC=x,
:NCDF=3C
ZAFD=ZC+ZCDF=x+30°
TAB4xK(úXAB`BC6:ED,
.DA=DB,
NB=NBAD=x,
/.ZDAF=180°-3x,
,:AD=DF,
.*.ZAFD=ZDAF,
/.x+30=180-3x,²,x=,
tuC,°
:
sA[0\[0\û08,«¬V6x,
CV½.
18`(-6,8)(2,4)(.8,4)(0,0)
(A/0[0\ý-þQÿ
,
.
=90°,AC=BC=4,yx=.2A5O,
C(0,2)
(-2,4)
SAABP=4
.-PDBC=4
2
.PD=2
P(-2,6)
#P8$%&'
(%ABPM,
)*+',R
VPM}=PB
NMRP=NPSB=90°,:.
NRMF=90°-ZRPM=ZSPB
.^RMiP^/^SPB{AAS)
:.M]R=PS=4,RP=BS=2
#PB$%&'
(%ABPM?
./M2(2,4)
#PB$%&'
(%ABPM?
./03(1&4)
#PB$%&'
(%ABPMg
./24(0)
M45$(-6,8)6(2,4)6(-8,4)6(0,0),
789$L(-6,8)6(2,4)6(18,4)6(0,0).
:
;<=>?***@A
(%B%CDEFG<HIJKB%C
LMNFO
PQRS;<TU.
BV8<(W78)
14
19V(1)XYZ[\]^$14_`a(2)bZcdX*YZ1e]a(3)f
ghI$96ij_`.
k(1)lm+nopyqrstu+n[4589a
(2)vZwxXYZ]^y_`Zwx*YZ]^yz_`vy,kix+b,z
(0,14)(4,12){|}j~QpVbqpyiTxkv
y2=k2X,z(4,12){|Qpk2qy2TxkQpyy2x
q89a:.
312fx=412!T*&5f'x=4 ¡
¢£¤o¥ ¡¢¦¤o12¤o§¥¨©ªª[«5|f'J
K.
/H*01hhh¡yC¬®¯°Mbc0,14,
hhh¢°±²o14³´.
2n ¡¢²oµ³´ ¡²oy2³´
yi=kix+b,
0=7k.+b
¶7,0,0,14FG'L,
14=/?
yi=-2x+14.
nyi=k2X,
·0WxW4¶4,12FG'L12=4k2,
*'Lk2=3,
/.y2=3x,
h¢S¸²
yi=y2,
.*.-2x+14=3x,
14
x=.
5
14
JL£w%º¢S¸².
312fx=4
·x=4yi=-2x4+14=6,y2=12,
,¢£14-6=8»³´¼
./.V©=12-8x24=96»½z³´¼.
JLª[96½z³´.
/MN0
O
Sy¾p¥¿jp7BSy¾p*&5ÀÁÂ)* +,.
2
j=-;2uÃÄÅƱÇÈÉÊ8¯ËÌÍÎÏGÐÑ.
x
/%&01ÒR12 ÓÔÃÄÅÆ{¡ÑtU½z´ÕÖ¡×ÃØy»Ù:.
Xu
ayXm{|M
JTa
2lm1xT}j~P1Q89.
1~xyxvy=Ax0,
&.&+nA2,1,
n1
.l=2k, =1,
2
1
¢£¤y¥v&'¨
X
&+nA2,1,
:F=2x1=2,
2
'-y=-5
X
2
2¢y={|
=©,
x
x=8,
&&&ª«\¬®>8u¯°±²P|³´.
:
µ¶°·xDE¸¹º»¼¹8½G<TUR¾Mº»¼¹¿
TÀÁMJQpÂÃT.
21VAV3ºÄÅÆ$90Ç`ÈÉÊË$200Ç`.
kÌÍvAVBºÄÅÆNÈÉÊËÎRxVyÇ`lm<Ï
¹T
:ÅÆË~+ÈÉË~=290,EÅÆXÑ+EÈÉÊËXÑ=,
lm
¹T}pj~Ò.
vAV3ºÄÅÆ$xÇ`ÈÉÊË$
'Ç`.
x+y=290
Ój~$
..I------=
8AVBºÄÅÆNÈÉÊËÎR90V200Ç`.
:
Ô<?***@AÕ1Öj~×TURvpØ0ÙÚpÛÑÜÝÞ,
pj~ß^1à.:.
k1Á{|JQzá{|âa
2Á2tãÕJáx3+âp14x=-14,Qpx,zxq{|áQpy;
å=2Ä
æCèzá{|â4y-3y=2
2x-3y=2
y=2
zy=2{|áx=4,
x=4
Ój~Rc
b=2
J3x+2y=3
15x-6y=-23
x3+â14x=-14,
x=-L
zx=-l{|á-3+2y=3,
y=3,
x=-1
Ü#êj~$.
[y=3
:
;<?***@A1Õ1Öj~JNÕ1Öj~Jj~ë;ìíRã
ÕjJî{|JN2tJºï>lmj~ðñòó¢jJ.
23VôH3ij`ôõ2ij`jô1ö.
k;<
¹T$÷ôHøù+÷ôõøù=5ôH¹x4=ôõ¹.
ôHøùxij`ôõøùyij`Ó
x+y=5
50xx4=300y
x=3
y=2
50x=l.
8ôH3ij`ôõ2ij`jô1ö.
:
;<?@Õ1Öj~×.:.
7137
24V(1)(1,2)(2)y=x---(3)E45$(ú©,1)6(6,8)
3322
k(1)zEû45{|kQpü45E45lmý
þMÿ
(2)E
(a,a+2),
axy,;
(3)NTHD=90°NTDH=90°ZDTH=90°!"
.
$%&'(1)&.&E()*y=x+2+,"E- (6,
.*.x+2=6,
"x=4,
.&.E ((4,6),
,:T(x,j)(./E
"
3+470+6
..x=----=ã,v=-----=2,
333
7
.,.r
(§,2),
7
4
'(§,2)
(2)E
(a,a+2),
:T(x,y)(./E
"
3+a0+a+2
x=------,v=-----------,
33
"a=3x-3,a=3y-2,
**.3x-3=3y-2,
"y=x--s
(3)E
(a,a+2),
57
(2,72),
33
8N7”Q="E:7; <=,
3+a
.----=a,
3
3
")=-"
2
37
***@9E
(,",)"
22
8NTD"="T:.; <=,
"a=6,:.
***@9E
6,8,
8/.77/="C!DEF,
37
G+HI"8AOTH
)JJK9"E
LD"DMN6,8
22
$O&
PQRST,UVWXY+ Z[
"Q\](^_`!
abcd.
251ef2OFNBACJg*+"hef3gi"he
f
$f&1QjklmBCEgACBD
2h1aABC
noJK"pqAOrstuBCvF,wxk
AOE^AAOD,NBAF=NCAF,OFNBACJg*+.
3pqOE,noJK*,.
$%&1&.&yJAABCz{|BOCE<uv."BD=CE
BC=CB,
/.BCEgACBDHL
:.CD=BE
2'OFNBACJg*+.
h'VABCE^ACBD
:.ZEBC=ZDCB,BE=CD
.,.ABC
noJK"
AAB=AC,
}~AB-BE=AC-CD
/.AE=AD
pqAOrstuBCvF,
FRtaAOE/RtAAOD,
AE=AD
AO^AO:.
ARtAAOE^RtAAOD.
NBAF=NCAF,
...OFNBACJg*+.
3gi"h'
X",uAFvG"
VAE=AD
/.ADE
noJ
2023届甘肃省东乡族自治县数学八上期末检测模拟试题含解析 来自淘豆网m.daumloan.com转载请标明出处.