September 2018 1 21 Report

oblicz:

/ = kreska ułamkowa

a) -12,84 : (-4) - 13i1/2 : (-27)

b) -1,2/0,6 + 4,8/0,8 - 12,66/2,11

c) 1,6 * (-5/8) + (-2,4) : 0,12 + 41

d) (-3,6 : 0,09) : (-5) + (-1,4) : 0,7

coś z fizyki ;)

wyznacz: Xo, a ,b

A(-2,2) B(3,-1)

(A(x,y) B(x,y))

y=ax+b

2=a(-2)+b

-1=a*3+6


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