Đang tải... (xem toàn văn)
[r]
(1)PHoNG GD&ET viNH yrN oE xrsnn rRA Hgc rcy r NAnn Hec z0t7
- 2018
nn0N: roAx o
Thdi gian: 9a ph*t fthhng k€ thdi gian giao di)
r TRAC NGrrrsM (s iriem)
Ghi vdo bdi l&m chi rn{t chir cdi A, B, c hofie D trwfc cau firt lN itfing,
cfiu t so tzo sau ph6n tich thira s6 nguyOn t6 c6 ki5t qui ld:
4.2.3.4.5 B 1.8.15 c 23 .3.5
D.2.60
D 40
Cfiu 2" K6t qu6 tfnh 30 + 3r.( 30 + r + 32) bdng:
A.8 B 46 c 31
cffu 3 c6 bao nhi6u s6 nguyOn t6 c6 hai chir s6 md chfr s6 hdng dcrn vi id i?
A.6 8.5 C,4 D.3
C0u 4' Sip x6p cac s6 nguydn a+2;a - 8; a+ 4;a- l0theoihu*iugiani dAntaduqc:
A a+ 2;a- B; a+ 4;a-1A C a+ 2;a+4;a_g;
a_ 10
B a+ 4;a+ 2;a- 8; a- 10 D.a-L0; a-8;a+2;a+4
cflu 5 Trdn tia ox l6y hai diOm A, B sao cho oA : 3crn, oB : 7cm D6 ddi doan
tndng AB 1A:
A" Zcm B 3cm C 4cm
D 5cm
Cffu 5" vE ilucvc bao nhi6u dtrdng rhing cli qua di6m ph6n bigt trong d6 kh6ng
c6 di6ni ndo thlng hdng tsi6t rang ,r, quu di6m ta v€ dugc
mQt duong thing
A.2A B I0 c s D I
IL T[r'LUAN (7 di6rn)
{'Aov (1,5 tliim) Thr,rc hi6n c6c phdp tinh sau &dng crich hop t{ n€u c6 the;
OT cgiNH THIIC
a) 12.79 + 79 172 * 79.84
C6u {1,5 itiiim) Tirn s6 t., nhi6n x, bi6t:
a)x-I0:3.{62:4)
CSar (t,5 diiws)
b) (ro.t' :z').zotzo
b) (3.x 20).7t :2.76
Sd hoc sinh kirdi cria mQt truong x6p hdng 10, hAng 12, hdng 15 dAu thi6u J
em' Tinl-r so hgc sinh khdi bi€t r6ng s0 hqc sinh trcng khoang t* 300 d6n 400
faAr' ! t\ {) a ,t:4= t T ^
vdrrr rt-' IA'u utern)- rrcn ila ur v€ hat doan thang (JM:
2cm, oN:5cm Tr€n tia
ci6i cua tia ot 16y di€rn P cho oP :4cm" Gqi I la trung c1i6m cua dopn thing oF.
a) Trnh d0 dai dopn thing MN.
b) Tinh dq dei dopn thing ot" Di6m o co ld trung tlidra cfla dopn tirang IIv{
khoilg? Vi sao?
C6u 11 {{t,5 ttiing"
Tim s0 tU nhidn n cho p : (n Z).(n, * n _ 5) ld s6 nguyCn t0. ".stlt
(Gido vi€n coi ki€nt tra kh6ng gidi thich gi th€m)