zad 5
Oblicz pole trójkąta równobocznego o podanej wysokości h.
a) h=6√3
b) h=6
c) h= 1,5
jak by się dało to bym prosił o pokazanie jak doszło do wyniku
Do przeprowadzenia reakcji fermentacji alkoholowej użyto 200g roztworu 20% glukozy. Reakcja chemiczna przebiega zgodnie z równaniem: *zdjęcie*
Oblicz objętość wydzielonego tlenku węgla (iv) w warunkach normalnych w momencie, gdy przereagowało 90% glukozy zawartej w roztworze. Wskaż poprawną odpowiedź.
A. 2,24 dm3
B. 4,48 dm3
C. 6,72 dm3
D. 8,96 dm3
5 Complete the dialogue with the quantifiers below. a bit of a few a little a lot of enough how many how much not enough not much too many too much 3 6 Matt Why don't we make shepherd's pie for dinner? Kate Great idea! What do we need? Matt To start with, we need an onion and some carrots. Kate How many carrots? Matt Just? a tew - the recipe says two or three. Kate Right. What do we have to do with the vegetables? Matt We have to cut them, and then cook them in oil. Kate oil do we need? Matt Just 4 - it says about one spoonful. Kate That's 5 ! Right, what's next? Matt After that, we need to add the meat. Kate We've got meat. There's a kilo in the fridge. Matt That's ? We only need 500g. Kate OK, we'll only use half of it. What else do we need? Matt We need some tomato purée. Have we got any? Kate This jar's nearly empty, but there's 8 sauce in the bottom. What do you think? Matt No, that's We need about 50g. Kate Wait a minute - here's a new jar. Now we've definitely got ! Matt Great! That's everything for the meat sauce. Have we got any potatoes for the top? Kate There's a three-kilo bag in the cupboard Matt That's 11 ! We only need 900g. And we need some butter and some milk. Kate No problem - here you are. I think we've got all the ingredients now, so let's start cooking! potrzebuje na dziś pomocy!