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Zostrojte obraz štvorca ABCD v osovej afinite OA ( o= CSAD, s = DD1, kde D1 = SAB)
Zdravíčko, potrebovala by som pomôcť s experimentom na hodinu teórie pravdepodobnosti. (Obrázok je len vzor)
Dobrý deň, potrebovala by som vypracovať tieto úlohy k ukážkam (sú zakrúžkované). Viem, že je toho viac, tak čo sa týka peňazí, nebol by problém. Avšak potrebujem to ešte dnes.
Koľko percentný roztok dostaneme, ak 30 ml 25 %-ného roztoku kyseliny sírovej prilejeme do 30 ml vody? Výsledok zaokrúhli na dve desatinné miesta.
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