Ответ учителя по предмету Алгебра
Из 6 теннисисток выбираем 4,С учетом порядка это составляет А=4 количество перестановок. Тогда 4 смешанные пары можно выбрать
А=10,6=6,2|4, 10,48 выбираем способами. Ответ:10,48
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1. The accommodation (to reserve) in the center of the city tomorrow.
а. will be reserved
б. will reserve
в. be reserved
г.will reserved
2. It began raining just after we (to bring) the machines in.
а. had been brought
б. brought
в. had brought
г. were brought
3. Why (so many people,to employ) by the company?
а. do so many people employ
б. so many were people employed
в. do so many people employed
г. were so many people employed