tích của cạnh hình lập phương là : ( cạnh x cạnh )

100 : 4 =25 

=> cạnh của hình lập phương là : 5 x 5 = 25 

vậy cạnh =5

1,5735

tick mình nha

1.A

2.B

2x chia hết ch x+3

<=>    2(x+3) - 6 chia hết cho x+3

vì 2(x+3) chia hết cho x+3 nên  6 chia hết cho x+3

vì x thuộc Z =>       x+3 thuộc { -6;-3;-2;-1;1;2;3;6}

ta có bảng sau:

4064256:2016=2016

Bấm máy tính ra liền!

16 và 36 ai tick 0 đúng sẽ may mắn cả năm

12 : 6 =2 

linh tinh

1. What do some people think of sports and games ?

=> Some people think that sports and games are unimportant things.

2. To whom are sports and games specially important ?

=> In fact, sports and games can be of great value, especially to people working with their brain most of the day.

3. What is the most important thing that sports and games do for our bodies ?

=> They give us valuable practice in making eyes, brain and muscles work together.

4. How can tennis be good to our body ?

=> our eyes see the ball coming, judge its speed and direction and pass this information on to the brain. The brain then has to decide what to do, and send its orders to the muscle of the arms legs, and so on.

5. What is one of the ways for pupils to practise good virtues ?

=> In their lessons at school, boys and girls may learn about such virtues as unsefishness, courage discipline, and love of one's country.

Chúc bạn học tốt nhé army BTS!

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