I Tavi

I
Tavi
42
17 amoxseniT gantoleba:
a) 2y2 + 11y + 10 = 0; b) 3z2 – 4z – 2 = 0;
3
g)
x2 –9 +
1 3
2 =
(3–x) 2x2 ;
+6x
x+2 x+3
d) +
x+1 x–2 =
29
(x+1)(x–2)
18 soflidan qalaqSi mimavali avtobusi Sua gzaze 10 wuTiT
SeaCeres. qalaqSi rom droze Casuliyo mZRolma siCqare
12 km/sT-iT gazarda. ipoveT avtobusis Tavdapirveli siCqare,
Tu qalaqamde manZili 80 km-ia.
19 daamtkiceT, rom oTxkuTxedi rombia, Tu misi wveroebi warmoadgens
a) marTkuTxedis, b) tolferda trapeciis gverdebis
Suawertilebs.
20 ABCD paralelogramis AC diagonalis sigrZea 18sm.
AB gverdis M Suawertili SeerTebulia D wverosTan. ipoveT
monakveTebi, romlebadac AC diagonali iyofa DM
monakveTiT.
21 xis simaRlis gasazomad SeiZleba gamoviyenoT sarke
ise, rogorc naxatzea naCvenebi. sinaTlis sxivi FD, sarkidan
airekleba D wertilSi da xvdeba adamians TvalSi
(B wertilSi). daadgineT xis simaRle, Tu AB=165sm;
AD=12sm, DE=4,8m (cxadia ∠1=∠2).
22 naxazze AP mxebia. Semdeg winadadebebidanromeliSeiZlebaiyosmcdari?
a) AB·BC=AM·MK; g) AP 2 =AM·AK;
b) KN·NM=CN·NP; d) AM·AK=AB·AC.
amocana damoukidebeli kvlevisTvis:
23 ipoveT a-s yvela is mniSvneloba, romelTaTvisac
(x 2 +5x+a)(4x 2 –7x+a)=0 gantolebis yvela fesvis namravli
1-is tolia.
C
K
N
B
.
M
P
A