2022年浙江省舟山市中考数学试卷真题及答案

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2022
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18♦y(cm)35032029026023020017014011080024681012141618202224x(h)ঝᦪx=4y=200,yᨬᜧx=21#(2)&ᦪḄ(ᩩឋ+᝞,(ᫀ./0)জ2⚞Jr7y5xḄ6ᜧ76ᜧ#ঝx=14yᨵᨬ9:80#(3)ᵫy=260x=5ᡈx=10ᡈx=18ᡈx=23,.,.5Vx<10ᡈ18cx<23y>260,ᓽ5vxvl0ᡈ18Vx<23,HIJKLMN.21.(8ᑖ)9PQ0RSTᢚVWᡂḄSYZ᝞1,SYZZ[Ḅ\]☢_0`aTbcᐸef᝞2,gh4)=3E=10a஻CD=CE=5cm,ADA.CD,BELCE,ZDCE=40°.(1)lmDE,opqDEḄr.(2)osA,8uvḄwx.(myz{ᑮ0.1cm.~ὃᦪ:sin20°®0.34,cos20°»0.94,tan20°»0.36,sin40°«0.64,ூᑖ᪆௃(1)sCsF,᪷ῪcḄឋ+NDC=20஺ᑭᵨ

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21ᦑ2ᦪ]ᙠU_`;(2)(1200-200)x(1-8.7%-43.2%-30.6%)=175(k)MNᙠlmnopḄ⌱r“ABC”ḄkᦪT175k;(3)ᵫ7Oᙢᕜᜧtᦪuv2/?,'(᪥tz{ᦟ}~ᡂḄ.(MᫀA).23.(10ᑖ)OᱥL,:y=a(x+l)2-4(aH0)A(l,0).(1)ᱥ4Ḅᦪ⊤.(2)ᱥᔣY஻?(>0)Wᓫ28ᑮᱥ4.£ᱥ4Ḅ⚔ᐵvᙶ᪗¨OḄªᙠᱥ஺Ḅ¬.(3)ᱥᔣY஻(஻>0)Wᓫ28ᑮᱥ4.®OP(8-/,s),QQ-4,r)uᙠᱥ£³>6uᨵs>r,஻ḄQ¬¶.ூᑖ᪆௃(1)A(l,0)·ᐭy=a(x+l)2-4ᓽ7L8ᱥ஺Ḅᦪ⊤Ty=x2+2x-3;(2)ᱥᔣY(a>0)Wᓫ28ᑮᱥ⚔T(_1,-4+m)ᐵv¨ḄªT(1,4)·ᐭy=x?+2x-37L8Ḅ¬T4;(3)ᱥᔣY஻(஻>o)Wᓫ28ᱥ4Ty=(x-஻+i)2-4,᪷KP(8—,s)Q(t-4,r)uᙠᱥ4³>6s>r,78[(9-r-«)2-4]-[(f-n-3)2-4]>0,ᓽ7L8"ḄQ¬¶Å஻>3.ூLM௃LN(1)A(l,0)·ᐭy=a(x+l)2-48N”(1+1)2-4=0,L8<7=1»/.y=(x+—4=X?+2.x—3;E:ᱥ4Ḅᦪ⊤Ty=V+2x-3;(2)ᱥA,Ny=(x+iy-4Ḅ⚔T(-1,-4),

22ᱥᔣYm(m>0)Wᓫ28ᑮᱥL,ᑣᱥLḄ⚔T(-1,-4+஻?)22Ë(-1,-4+ಘᐵv¨ḄªT(1,4-m)(1,4᪷)·ᐭy_᱄+2X38NI2+2x1-3=4-Z71,L8=4,MNmḄ¬T4;(3)ᱥᔣY஻(஻>0)Wᓫ28ᑮᱥ,ᱥ4L᪆Ty=(x-n+l)2-4,••Ð(8T,s),QQ-4j)uᙠᱥ£35=(8—?—/?+1)-—4=(9—/—஻)”—4,r=(^—4—724-1)2—4=(t—n—3)2—4,•,³>65>r,/.5-r>0,[(9-r-n)2-4J-l(r-«-3)2-4]>0,᦮ᳮ×Ø8N(97—"Ù-(I-஻-3)2>0,(9-f—஻-n—3)(9—t—n—+஻+3)>0(6-2n)(12-2r)>0,•.1>6.\12-2r<0,/.6—2n<0,L8n>3,•.஻ḄQ¬¶Å%>3.24.(12ᑖ)᝞1,ᙠÜÝØMCDHF,“ᑖáᙠâ4),ABL,ã9AC,FHävE,OCF=C஻.(1)çACèF"ᚖêᔩìíîïᳮᵫ.(2)᝞2,A,H,ÐḄᙊäC/vP,ã9äACvK.òN—.CHAC

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