LATIHAN PK 2020

singular
- Det = 0

(x -
6)x( 5)1 - = 0

air : alkohol = 4X : 3x # 7X X2 -
6x + 5 = 0

alr : alkohol + 5 =
4y :
5y * 7X + 5 (x -
5)(X -
1) = 0

5y = 3X + 5 gy =
7x + 5 X =
5 atan x=1 bilangan terkel
3x + 5
g(3x 5)
+
y =
5
=
7x + 5

3 (2 5) + 5 27x + 45
y
,
= = 7x + 5
5 5

y =
2 , 5 27X + 95 =
35X + 25

Jumlah air 20 = 8X

4y =
4(2 5) ,
=
10 llter ,5
2 =
X
f(x) = 2X
f2(x) -

6f(x) = -
8

(2) 2x6(2x) = -
8

4x2 - 3x = -
S X4

x2 -
12x + 32 =
0

(X -

4)(X -
8) = 0

12 Orang 12harl & 16-4 X =

4 ataux = S

8 orang 18 har

+ 4 harl
+
22 hari

X2 -
X -
2 = 0 X1 . Xz = 2 . -

(X -
2)(x + 1) = 0 =
2

X = 2 atau x = -
1 Y1 . Y2 = 1 .
7

Carl peluang yang paling besar X =

22(2)y + 3y =
7
=
7

· 2 pakaian merah=x= warna 7y = 7 y =

/

· 2 pakaian biru = warna = X = -

182( -
1)y + 3y = 7

· 2 Kemeja Exp = =
10 y =
7

· 2 kaos= 3X o =25

Budl mengambil 2 buah pakalan warna him