Question

prosze teraz musze miec zadanie 71/52str w podreczniku mata z pluse zadanie 71.OBLICZ:

a) -1 i 1/4 x (-4)=

b) -6 i 2/3:2

c)-0,2x(-0,2)=

d) -3 i 1/3 x (-3)=

e) (-3)do potegi 2 x 1/3=

f)(1/3) do potegi 2 x (-9)=

g) -6 do potegi 2 : 1/2

h) 3 i 3/4 : (-1,25) do potegi 2=

Answer 1

a) -1i1/4 *(-4)= -5/4 * (-4)= 5

b) -6i2/3 : 2 = -20/3 * 1/2= -10/3 *1/1= -10/3 = -3i1/3

c) -0,2 * (-0,2) = 0,04

d) -3i1/3 *(-3)= -10/3 * (-3)= -10/1 * (-1)= 10

e) (-3)^2 * 1/3 = 9 * 1/3= 3 *1/1 = 3

f) ( 1/3)^2 * (-9)= 1/9 * (-9)= 1/1 *(-1)= -1

g) -6^2 : 1/2 = -36 * 2/1 = -72

h) 3i3/4 : (-1,25)^2 = 3.75 : 1,5625 = 2,4

Answer 2

a)   -1¼ × (-4) = -5/4 × (-4) = 5

b)   -6⅔ : 2 = -20/3 : 2 = -20/3 × 1/2 = -20/6 = -3⅓

c)   -0,2 × (-0,2) = 0,04

d)   -3⅓ × (-3) = -10/3 × (-3) = 30/3 = 10

e)   (-3)² × ⅓ = 9 × ⅓ = 3

f)   (1/3)² × (-9) = 1/9 × (-9) = -1

g)   -6² : 1/2 = -36 : 1/2 = -36 × 2 = -72

h)   3¾ : (-1,25)² = 3,75 : 1,5625 = 2,4