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河南省许昌实验中?018-2019学年第二学期七年级数学期末考试试卷 - 百度文库

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2018-2019ѧڶѧĩѧԾ

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Ծ120֣ʱΪ100.ڴ⿨𣬷Ч. һѡ(⹲10С⣬ÿС3֣30)

1.ĸͼУƽƱ任γɹ̵ǣ

A B C D

2.ƽֱϵУP(1,?5)ڣ Aһ

C

D

3.εΪ6εı߳Ϊ A2

B6

C2

D4

4.еУ˲ղ鷽ʽ( ) Aгѧ״ĵ Cÿϸǰİȫ

Bԡһڼγзʽĵ Dijֻصʹ

5.ͼλPֱ߹·MNС·̵ǣ

APA

BPB

CPC

DPD

6.a?bвʽһȷǣ A3a?3b

Bma?mb

C?a?1??b?1

D

ab?1??1 227.ͼֱcֱaཻڵAֱbཻڵB?1?130??2?60?.Ҫʹֱab轫ֱaƵA˳ʱ뷽ת

A10?

B20?

C60?

D130?

8.һأƽֱϵУκһԪһη̵ĽԿһ꣬ôԶԪһη̵ĽΪĵȫԪһη̵ͼ󡣸ͼǷ֣κһԪһη̵ͼһֱߡۣͼһʾxyĶԪһη

?a1x?b1y?c1Ľ⣬ôǣ ?ax?by?c?222

AM

BN

CE

DF

9.Ƕһʵab㣬涨ab?4a?3b磺56?4?5?3?6.m

m2?0m??8? ?0mȡֵΧǣ

Am?3 2Bm??2 C?6?m?3 2D

3?m?2 210.ͼƽֱϵУһԭOżͷʾÿƶһλεõP3(1,0)P5(2,?1)P1(0,1)P2(1,1)P4(1,?1)P6(2,0)P2019ǣ

A(672,0)

B(673,1)

C(672,-1)

D(673,0)

⣨⹲8С⣬ÿС3֣24֣ 11.3෴.

12.3x?2y?6?0Ϊúxʽӱʾyy?.

13.ͼ258ʾϣͼбʾĽ⼯.

14.ͼһֱĵȿֽ۵?aĶΪ.

15.ijУչ(1)ͬѧ룬ֽƳƵֱֲͼ(ͼʾ)3.5-4.5ռ30%ô4.5-5.5.

16.ѧҳơΪ㾭֮\һļأΪ5ֻȸ6ֱֻ࣬ۼһأƵȸأᣬһֻȸһֻཻλãȣ5ֻȸ6ֻһΪ1ȸÿ1ֻضٽ?ȸÿֻxÿֻyзΪ. 17.֪??x?1?mx?ny?7ǶԪһη?Ľ⣬2m?nֵΪ.

?y?3?mx?my?118.֪ͼABCD?ABE?40?CFƽ?ECDCFBE?ECDĶΪ.

⣨⹲7С⣬66֣ 19.ⷽͲʽ 1ⷽ??3x?4y?16

5x?6y?33??5x?3?2x?2ⲻʽ?3x?1ѽ⼯ʾ.

?4??220.֤.

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