поМогитееееееее плиииз) Be(OH)2 - Becl2-Na Beo2

Помогите решить Уравнение.

sin(7pi+x)=cos(9pi+2x)

Фермер привёз на рынок 42 целых 4 7 кг

Make the sentences passive

1. People speak Spanish not in many countries. Spanish____________________________________________________

2. One has to keep butter in the refrigerator.

The butter____________________________________________________

3. They will report your results next week.

Your results___________________________________________________

4. By the time the director came she had typed the letters.

The letters______________________________________________ Concerts_____________________________________________

найдите 23 й и n й члены арифметической прогрессии а)-8; -6.5 ;..; б)11; 7;... .