lisa123465
24.02.2020 •
Mathematics
The English alphabet contains 21 consonants and five vowels. How many strings of six lowercase letters of the English alphabet contain a) exactly one vowel? b) exactly two vowels? c) at least one vowel? d) at least two vowels?
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Ответ:
(A) If the given prism is cut with a plane parallel to the base, the resulting shape will be in the form of
1. Cube
or
2. Cuboid
(B).
If a cross section of the prism is cut diagonal to the base The resulting cross section would be in the shape of two rectangles attached with one another.