中考真题2022年广西贺州市中考数学试卷（附答案）

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2022
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1834N•ABCD:.AD=BC,AE//FC•;ED=BFAD—ED=BC—BF,^AE=FC.74FCE.(2)NC,:.ZEAC=ZACF.•••ACᑖ.ZEAC=ZFAC..-.ZACF=ZMC.AF=FC,ᵫ(1)PAFCE7•.AFCE6.:.AO=-AC=4,AC±EF,2ᙠRtAAOER7AO=4,unZDAC=-,4EO=3../.SL.^.nU=-2AO-EO=-2x4x3=6nt.FS6AFCE~4S"OE=24.ூST௃U⚪ὃXḄᑨ?ஹ6Ḅᑨ?[ឋ#ஹ!Ḅឋ#ஹ/ᑖ!Ḅឋ#ஹ;ᑗ=ᦪḄ?@P\7]⌕ὃS7_`a7bcᐵP\⚪ᐵe.24.পy=-2x+296(2)gᝅijk91ᐗm7gᜩ├iᝅpᡠrᑭtᨬᜧ7ᨬᜧᑭt6498ᐗ.ூ᪆௃ூᑖ᪆௃(1)᪷“wxygᝅḄij48ᐗm7gᜩ$iz200ᝅN{gᝅij|}2ᐗ7ᑣgᜩᓬ4ᝅ.”ᑡz=ᦪᐵH7ᓽ$(2)᪷ᑭtgpḄᑭt├i7$%ᑮ=ᦪᐵH7.ᑭᵨ=ᦪḄឋ#7ᫀJ13⚓7ᐳ18⚓

19ᓽ$.(1)N᪷⚪7%y=200-gx4(x-48)=-2x+296••y[xḄ=ᦪᐵHy=-2X+296.(2)N᪷⚪7%W=(x-34)(-2x+296)=-2(%-91)2+6498•/a=-2<07ᱥ!¡ᔣ£7¤ᨵᨬᜧ¦§x=91m7%ᜧ=6498Ngᝅijk91ᐗm7gᜩ├iᝅpᡠrᑭtᨬᜧ7ᨬᜧᑭt6498ᐗ.ூST௃U⚪¨⌕ὃX©=ᦪḄªᵨ7=ᦪḄ«▭ªᵨ74⚪7®%ᑮᐵ⚪Ḅᐵe.25.(1)᪆;ফ6G.ூ᪆௃ூᑖ᪆௃(1)³´0C,34NOCE=90஺ᓽ$(2)ᐜ34zCC_LA8,.ᑭᵨ¹/D/Ḅឋ#ºD/=ᦪᑖ»z/஺¼ºCFCᓽ$zADḄ¦.(1)34N³´0C.■OA=OC,.ZCAB^ZACO.•;NECB=NCAB,-,-ZECB=ZACO.ᫀJ14⚓7ᐳ18⚓

20AB஺஺Ḅ¹¾,vZACB=90°..ZACO+ZOCB^9Q0.:.Z.ECB+NOCB=90°,BPOC1EC.¿•.•OCooḄÀ¾7.,.EC஺஺Ḅᑗ!.(2)N:BCᑖNEC஺7:.NBCD=NECB.■ABCD=ZBAD,:.NECB=NBAD.+•ZECB=NCAB,:.ZBAD^ZCAB.¿Q43஺஺Ḅ¹¾7.-.ABA.DC.ᙠR/AFCER7•BE=BC,:.ZE=ZECB..ZE=ZECB=ZBCF=30°.ᙠRtABCFR7BC=6,ZBCF=30°,:.CF=BC-cosZBCF=6x=3Á.2vABA.CD,AB஺஺Ḅ¹¾7DF=CF=3>/3.ᫀJ15⚓7ᐳ18⚓

21ᙠRtAAD/R!ZDAF=ZBCF=30°,DF35/3AD=sinZDAFj_2ூST௃U⚪ὃX©ᑗ!Ḅᑨ?ஹᙊᕜ/?ᳮÉᐸËÌஹᚖ¾?ᳮḄËÌஹD/=ᦪP\7⚪ᐵe³À¾᪀⌼ᡈ34¹/D/7¨⌕Ñᵨ©ÒᓄḄÔÕÖ×.26.(1)j=-x2+2x+3(2)SPᙶ᪗k(1,1)3+>/53—y/5(3)Ûᙠ7=T—7Ḅ=-T22ூ᪆௃ூᑖ᪆௃(1)Þ4-1,0),8(3,0)ßᐭy=-V+ᮞ+°ᓽ$Ḅ%zᱥ!᪆H;(2)ã⚪$%zᓽäSᙠNCOBḄᑖ!æᙠᱥ!ḄçèæᑭᵨῪD/Ḅឋ#7ᓽ$%zPSḄᙶ᪗;(2)ᑭᵨêᚖ!ME,ᓽ$⊤ízS48CM7.ᵫïð"=SMCPᓽ$ᑡzÖò.প᪷⚪7%0=-(-l)2-Z?+c0=-32+3/7+Ch=2%c=3,ᱥ!᪆HkNy=-x2+2x+3.ফᵫ(1)%y=-%2+2x+3,.•SC(0,3),SB(3,0),/.OC=OB=3.•§APCB,-BCköḄῪD/PC=PB,ᫀJ16⚓7ᐳ18⚓

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