2021-2022学年辽宁省丹东市中考数学全真模拟试题含解析及点睛

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e3b-O"=-3.஻=2#)..•.ᡠgᱥḄ⊤ij@\,=/+2l.22ஹ(1)n“p@8”Ḅᭆ᳛0.33H(2)xḄtuv@7.ூ᪆௃(1)ᑭᵨ⚣᳛{|ᭆ᳛}ᔠ⊤6ᦪeᫀᓽH(2)Ꮇ[x=7,᪷⚪ᐜᑡ᪛
ep@9Ḅᭆ᳛
gB
ᓽeᫀ.ூ௃(1)Ḽᦪub
n“p@8”Ḅ⚣᳛⌲ᙠ0.33,

17ᦑd´“¶=8”Ḅᭆ᳛0.33.(2)xḄI¸=7.ᳮᵫOᎷ+x=7,(¶)7S1079118912101112ᑣP(¶=ᡠxḄI¸=7.63ூMN௃⚪º⌕ὃQRᑭᵨ⚣᳛½wᭆ᳛᪛¿>ᭆ᳛
oÀÁd᪛¿:⚪ᐵ.23ஹ(1)5H(2)-2d`¸ÌuḄ:Í
-Îd:ÍḄtᐳᑖᓽ8.ூª:௃(1)u=-1+2᧊Ð+4-1,2=-1+3+4-1,5H(2):¸Ìuজ9
x>-2,:¸Ìuঝ9
x<--,2ᡠ¸ÌuÓḄ:Í-2

18ூ
᪆௃(1)ᑖåᑭᵨæᙳᦪஹfᦪஹèᦪᑖ᪆9dKᫀ(2)ᑭᵨéḄᑖ᪆9dKᫀ.ூ
௃(1)AᡂëḄæᙳᦪ=,(9+10+4+3+9+7)=7èᦪ=96Bᡂë᣸î=6,7,7,7,7,8,ᦑfᦪ=7ᦑKᫀ=O1,9,7,1(2)S=—[(7-9)2+(7-10)2+(7-4)2+(7-3)2+(7-9)2+(7-7)2]=76Sj,=1-[(7-7)2+(7-7)2+(7-8)2+(7-7)2+(7-6)2+(7-7)2]=1-63ïéð
BḄé
ᡠBḄᡂëñò^
ïᢗôò^ឋὃ⇋áâ⌱äB.ூMN௃⚪º⌕ὃQRfᦪஹèᦪஹéḄ^
é1᧜ÃÓᦪAḄ÷eᜧḄÃø.éùᜧ
ᑣæᙳIḄHᦣûÛùᜧ
ò^ឋüù1a
ᑣýᐸæᙳIḄHᦣûÛù
ò^ឋùÿ.