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fgiga [73]
3 years ago
7

(Y = -x + 4), (y = 3/2x - 6)

Mathematics
1 answer:
Temka [501]3 years ago
8 0

Answer:

x = 4

Step-by-step explanation:

- x + 4 =  \frac{3}{2} x - 6 \\  - 2x + 8 = 3x - 12 \\ 2x - 8 =  - 3x + 12 \\ 5x = 20 \\ x = 4

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Vì tam giác ABC cân tại A (gt) mà AM là đg trung tuyến nên AM đồng thời là đg cao của t/giác đó:

AM là trung tuyến của t/giác ABC nên M là trung điểm BC:

=> BM =BC/2 =6:2=3(cm)

Xét tam giác AMB vuông tại M

AB^2 =AM^2+BM^2 ( theo định lý Py-ta -go)

7 0
3 years ago
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6 0
2 years ago
For every 1 litre of water used to make a medicine, 269ml of sucrose and 61ml of saline solution are used. Express the amount of
Burka [1]

Answer:

Step-by-step explanation:

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3 years ago
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Answer:

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3 0
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Answer:

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