Question

iloraz liczb (-1,2) i 8

metrów w 0,015 km

- 17/20+0,7:1 1/5

[2/3+(-1/3) do potęgi drugiej]:7

Answer 1

1.

(-1,2) : 8 = 0.15

 

2.

0.015 km = 15 m

 

3.

-  17/20 + 0,7 : 1i 1/5 = - 17/20 + 14/20 : 1i4/20 = -17/20+14/20 * 20/24 =  = - 17/20 + 7/12 = - 204/240 + 140/240 = - 64/240

 

4.

[2/3 + (- 1/3)2 [ta dwójka to potęga :) ] :7 = [2/3 + 1/9] :7 = [6/9 +1/9] :7=

= 8/9 : 7/1 = 8/9 * 1/7 = 8/63

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by pepe251096