Предмет: Математика, автор: Gulsaba

Помогите пожалуйста с математикой даю 20 баллов все три задания фото загрузила.

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Автор ответа: mamamasha84959699498

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Предмет: Английский язык, автор: egorf38537

year. Though there are four seasons and twelve months in the English year, it differs from our The first difference is in the number of months in spring, summer, winter and autumn. There are only two spring months in Great Britain. They are March and April. But there are four summer months. Summer begins in May. Then June, July and August come.. Autumn months are September and October. Winter begins in November and lasts four months: November, December, January and February. So there are two months in spring and autumn and four months in summer and winter. The weather is also different. It is warmer in Great Britain than in our country. It seldom snows but it often rains. The weather is changeable. The Englishmen celebrate different holidays. Their favourite holidays are Christmas, St. Valentine's Day, Mother's Day, April Fool's Day, Easter, Father's Day and Halloween. They have a lot of fun then. Our Earth is so beautiful. There, are a lot of blue rivers and lakes on the Earth. Its oceans are full of wonders. There are high mountains covered with snow and wonderful fields am orests full of different plants and animals. The sun shines high up in the blue sky. At nig we can see the moon and millions of stars. One season comes after another and brings hanges in weather and nature. There are so many wonderful places to visit and interest hings to see. Nature gives people its riches to live and enjoy. We can't live without fresh air, clean water, sunshine and a lot of things which we take om the nature. That's why we must take care of it. We must keep our rivers and lake -rests and towns clean. We must take care of each plant and each animal. We must pl not pick them up, feed birds and animals in winter- not kill them. Then w - happy to live on the most beautiful planet in the Universe. owers- -
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Предмет: Математика, автор: Аноним

визначте яка із рівностей правильна якщо кут А тупий, кут А =180°
кут А=73°
кут А=108°
кут А=90°

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