martaryba229
A)1,25 x (-3 1/4) x (-8)=1,25x(-3,25)x(-8)=32,5 b) -3 x (4,2-6,3)=(-3) x (-2,1)=-6,3 c)(3 2/3 -4) x (6-3/5)=(11/3-12/3) x (30/5-3/5)= -1/3 x 27/5= -27/15= -9/5= -1 4/5 d)(-3 4/5-1/5) x (-3,7+1,4)=(-3,8-0,2) x (-2,3)= (-4) x (-2,3)=9,2 e)(0,92-5) : (3 x 0,4)= -4,08 : 1,2= - 3,4 f)(-5 1/7 - 9/14) :(-1 +17/35)= (-36/7 -9/14):(-35/35+17/35)=(-72/14-9/14):(-18/35)= (-81/14)x(-35/18)=2835/252=11 63/252=11 7/28=11 1/4 g)(1 1/6 -5 3/4) x (-12) : 1,1=(7/6-23/4) x (-12):1,1=(14/12-69/12)x(-12):1,1=-55/12x(-12):1,1=660/12:1,1=55:1,1=50 h)(-2/3) do pot.2 x (-12,3+3,3) pot.2= 4/9 x (-9) do potęgi 2=4/9 x 81=324/9=36 i)(-0,3) do3 :(-1+2/5) do 2=-0,027 :(-3/5) do potęgi 2= -0,027:(-9/25)= -0,027:(-0,36)=0,075 j)(2,5-2 1/3) do 2 -(-1/3) do 3 : 2/3=(25/10-7/3) do 2 -(-1/27):2/3=(5/2-7/3) do 2 +1/27 x 3/2=(15/6-14/6)d0 2 +1/18=(1/6)do 2+1/18=1/36+2/36=3/36=1/12
a)1,25 · (-3i1/4) · (-8) = 1,25 · (-3,25) · (-8) = 32,5
b) -3 · (4,2 -6,3) = (-3) · (-2,1) = -6,3
c) (3i2/3 -4) · (6 -3/5)=(11/3 -12/3) · (30/5 -3/5)= -1/3 · 27/5 = -27/15 = -9/5 = -1i4/5
d) (-3i4/5 -1/5) · (-3,7 +1,4) = (-3,8 -0,2) · (-2,3) = (-4) · (-2,3) = 9,2
e) (0,92 -5) : (3 ·0,4)= -4,08 : 1,2= -3,4
f) (-5i1/7 -9/14) : (-1 +17/35) = (-36/7 -9/14) : (-35/35 +17/35) = (-72/14 -9/14) : (-18/35)= (-81/14) · (-35/18) = 2835/252 = 11i63/252 = 11i7/28 = 11i1/4
g) (1i1/6 -5i3/4) · (-12) : 1,1 = (7/6 -23/4) · (-12) : 1,1 =(14/12 -69/12) · (-12) : 1,1 = -55/12 · (-12) : 1,1 = 660/12 : 1,1 = 55 : 1,1 = 50
h) (-2/3)² · (-12,3 +3,3)² = 4/9 · (-9)² = 4/9 · 81 = 324/9 = 36
i) (-0,3)³ : (-1 +2/5)² = -0,027 : (-3/5)² = -0,027 : (-9/25) = -0,027 : (-0,36) = 0,075
j) (2,5 -2i1/3)² - (-1/3)³ : 2/3 = (25/10 -7/3)² - (-1/27) : 2/3 = (5/2 -7/3)² + 1/27 · 3/2 = (15/6 -14/6)² + 1/18 = (1/6)² + 1/18 = 1/36 + 2/36 = 3/36 = 1/12
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b) -3 x (4,2-6,3)=(-3) x (-2,1)=-6,3
c)(3 2/3 -4) x (6-3/5)=(11/3-12/3) x (30/5-3/5)= -1/3 x 27/5= -27/15= -9/5= -1 4/5
d)(-3 4/5-1/5) x (-3,7+1,4)=(-3,8-0,2) x (-2,3)= (-4) x (-2,3)=9,2
e)(0,92-5) : (3 x 0,4)= -4,08 : 1,2= - 3,4
f)(-5 1/7 - 9/14) :(-1 +17/35)= (-36/7 -9/14):(-35/35+17/35)=(-72/14-9/14):(-18/35)= (-81/14)x(-35/18)=2835/252=11 63/252=11 7/28=11 1/4
g)(1 1/6 -5 3/4) x (-12) : 1,1=(7/6-23/4) x (-12):1,1=(14/12-69/12)x(-12):1,1=-55/12x(-12):1,1=660/12:1,1=55:1,1=50
h)(-2/3) do pot.2 x (-12,3+3,3) pot.2= 4/9 x (-9) do potęgi 2=4/9 x 81=324/9=36
i)(-0,3) do3 :(-1+2/5) do 2=-0,027 :(-3/5) do potęgi 2= -0,027:(-9/25)= -0,027:(-0,36)=0,075
j)(2,5-2 1/3) do 2 -(-1/3) do 3 : 2/3=(25/10-7/3) do 2 -(-1/27):2/3=(5/2-7/3) do 2 +1/27 x 3/2=(15/6-14/6)d0 2 +1/18=(1/6)do 2+1/18=1/36+2/36=3/36=1/12