Ergänze die Monatsnamen. Uzupełnij nazwy miesięcy. PROSZE POMOCY!!!!

Odpowiedź:

Szczegółowe wyjaśnienie:

d=0,89 g/cm^3

m=100 mg =100/1000 g=0,1 g

d=m/V / ×V

dV=m/:d

V= m/d

V=0,1/0,89=0,12 cm^3=0,12 ml

Odpowiedź:

1. Jack is watching a football match on TV right now. He always watches football on Saturday afternoons.

2. It's cold today. Right now I am making a potato soup. I like potato soup.

3. Mark is obsessed with computer games. He plays computer games morning, noon and night. Sometimes he skips class to play them so he doesn't do well at school.

4. Watch out! The car is coming very fast.

5. Peter and Sue are very hungry so they are having a sandwich now.

6. Mr Smith always goes to work by car. But today he is walking because his car isn't working.

7. Autumn is a beautiful season. It is my favourite season because it is cool and the trees change colour. It often rains and the wind blows.

8. We are in Spain now and we are having a great time. The weather is beautiful and the food is delicious. There are a lot of things to see.

9. Jane is often tired when she comes home from work. She makes a cup of coffee and then relaxes by watching TV in the living room.

10. Yesterday I bought a new jumper. The jumper was a bit expensive but I like it.

11. We visited our grandparents last weekend. They live in the countryside. I like going there because it is quiet and peaceful.

12. I had a toothache yesterday so l went to the dentist. He told me he had to pull it out. It was painful.

13. Peter never does his homework so the teacher gets angry with him. Yesterday the teacher called his mother and told her he didn't do his homework. Now Peter is studying his lessons and doing his homework.

14. It began to rain on the way to school yesterday. I got wet because I

didn't have an umbrella with me.

15. A: Let's go to the new restaurant on Everton Street. They say it is really good.

B: What kind of restaurant is it?

A: It is an Italian restaurant. They make special pizzas and pastas.

B: I love pasta.

16. Look! There is a man outside. He is driving your car!

17. This is a small island. Teo different tribes live here. They hunt for food every day. They go fishing and kill animals. They don't like fighting. They visit each other and celebrate traditional festivals together.

Wyjaśnienie:

Odpowiedź:

[tex]a) V = a^{3} = 3^{3} = 27 cm^{3}\\\\P = 6*a^{2} = 6*3^{2} = 54 cm^{2} \\\\\\b) V = a*b*c = 24 cm^{3}\\\\ P= 2(a*b +b*c+a*c)= 2(2*3+3*4+2*4) = 52 cm^{2}[/tex]

Odpowiedź:

a)

b)

Szczegółowe wyjaśnienie:

a) Sześcian:

[tex]a = 3 cm\\\\V = a^{3} = (3 \ cm)^{3} = 3 \ cm\times 3 \ cm\times 3 \ cm =\boxed{ 27 \ cm^{3}}\\\\P_{c} = 6a^{2} = 6\cdot(3 \ cm)^{2} = 6\times3 \ cm\times 3 \ cm =\boxed{ 54 \ cm^{2}}[/tex]

b) Prostopadłościan:

[tex]a = 2 \ cm\\b = 3 \ cm\\c = 4 \ cm\\\\V = abc = 2 \ cm\times 3 \ cm\times 4 \ cm = \boxed{24 \ cm^{3}}\\\\P_{c} = 2ab + 2ac + 2bc =2(ab+ac+bc)\\\\P_{c} = 2(2 \ cm\times 3 \ cm + 2 \ cm\times 4 \ cm+3 \ cm\times4 \ cm) = 2(6 \ cm^{2}+8 \ cm^{2}+12 \ cm^{2})\\\\P_{c} = 2\times 26 \ cm^{2} = \boxed{52 \ cm^{2}}[/tex]

Odpowiedź:

Trójkąt: (trójkąt o wymiarach 16x8x8 nie istnieje)

Prostokąt:

[tex]P=a*b= 16*5= 80 cm^{2}\\Obw = 2(a+b) = 2(16+5) = 42 cm[/tex]

Równoległobok:

[tex]P=a*h= 16*6= 96 cm^{2}\\Obw = 2(a+h) = 2(16+8) = 48 cm[/tex]

Oznaczenie jest niejednoznaczne, ale sadząc po skali  trudności zadań to chyba ma być romb o przekątnych 16x12

[tex]a=\sqrt{6^2+8^2}=10cm\\P=\frac{e*f}{2}= \frac{16*12}{2}= 96 cm^{2}\\Obw =4*a=4*10 = 40 cm[/tex]