1344 : 24 , 9108 : 36 , 899 : 29 .
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\(xy+x+y=2\)
\(\Leftrightarrow x\left(y+1\right)+y+1=3\)
\(\Leftrightarrow\left(x+1\right)\left(y+1\right)=3\)
Ta có bảng giá trị:
x+1 | -3 | -1 | 1 | 3 |
y+1 | -1 | -3 | 3 | 1 |
x | -4 | -2 | 0 | 2 |
y | -2 | -4 | 2 | 0 |
Chọn D
A Let's see. We want to make spaghetti bolognese. Is there 1_any______ spaghetti on the shelf?
B Yes, there's a whole packet.
A Fine. How 2 much beef do we need?
B About 500 grams.
A Well, there isn't 3 much in the fridge.
B OK, so we need to buy 4_some __ beef!
A And vegetables! How 5 many carrots, tomatoes and onions do we need?
B I know we've got 6__some__ carrots. How 7 mucg tins of tomatoes do we need?
A One tin is fine.
B OK, we've got two.
A And onions? Are there 8_any__ onions in the cupboard?
B Yes, there are!
The area of the top and the bottom of the box is
The area of the sides are
The area of the front and the back are
The area of wrapping paper needed to wrap the gift is
Answer :
The area of the top and the bottom of the box is
The area of the sides are
The area of the front and the back are
The area of wrapping paper needed to wrap the gift is
Answer :
TL:
1344 : 24 = 506
9108 : 36 = 253
899 : 29 = 31
HT.
1344:24=56 9108:36=253 899:29=31
HT
k cho mình nha
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