September 2018 1 22 Report

1. Do 6 kg 15-procentowego kwasu siarkowego dolano 2 kg wody. Ile wynosi stężenie procentowe nowego roztworu?

2. a) -1,6 * (1 1/3)-³ + 12 * 2-²

b) [(-1/2)-³ - (3/4)-²]-1 (-1 , to potęga)


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