jlulu398
23.05.2020 •
Mathematics
Examine the following results of a survey that asked 100 seventh graders if they have either a cell phone or a tablet. Of the 32 students that have a cell phone, 19 do not have a tablet. Of the 70 students that have a tablet, 57 do not have a cell phone. A total of 11 students stated they do not have a cell phone or a tablet.
How many students have both a cell phone and a tablet?
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Ответ:
8√(63x¹⁴y⁹) = 8√(7*9*x⁷x⁷y⁴y⁴y)=24x⁷y⁴√(7y)
Answer is D.