BardiFan
23.03.2020 •
Mathematics
D = {x | x is a whole number} E = {x | x is a perfect square < 36} F = {x | x is an even number between 20 and 30} The expression D ∪ E = E. F ⊂ D (E ∩ F) is the empty set. E ∪ (D ∩ F) is {25}. Set E is infinite.
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Ответ:
one inch on the plan represents 2.3 feet in real life
Step-by-step explanation:
Set up a proportion