в треугольнике ABC и DFE угол А= углу F. В=D. ВС=3 см. EF=28 см.ED=21 см. найдите длину стороны АС.

Найти координаты вершины параболы:

y=/-(x+1)квадрате +3/

y=/-(x-1)квадрате +2/

Rewrite the sentences with the words in brackets in the right place.

Example:Have you been to Scotland (ever)? -Have you ever been to Scotland?

1.My friend has had a bird's-eye view of the  city (never).Let's take her to the London Eye.

2.Let's make an apple pie.I have bought green apples, eggs and some flour (already).

3.The group of  tourists has turned left (just). 

4.The children have visited the London Zoo (recently). They liked  the  monkeys.

6.What have you done (lately) 

7.You have seen a UFO, haven't you (just)? - Are you sure?

почему в облачный день предметы не дают тени Срочно плиииииииз