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saw5 [17]
3 years ago
11

Bài 4: 350 Cho tam giác ABC nhọn, hai đường cao BD, CE cắt nhau tại H. M là trung điểm của BC. K đối xứng với H qua M. a) Chứng

minh tứ giác BHCKlà hình bình hành b) Chứng minh BK LAB và CK AC. c) Gọi 0 là trung điểm của AK. Chứng minh OM IBC d) Gọi N là điểm đối xứng với H qua BC. Chứng minh BNKC là hình thang cần​
Mathematics
1 answer:
Dima020 [189]3 years ago
5 0
No sabo la respuesta jajaja
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Y=4-2x

If need step by step please message me! And yes this is the right answer!
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Simplify (8x^2 - 1 + 2x^3) - (7x^3 - 3x^2 + 1).
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Step-by-step explanation:

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Find the range of f(x)=3(4)^x
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Step-by-step explanation:

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5 0
3 years ago
The triangle shown on the graph above is rotated 90 degrees clockwise about the original to form triangle P’Q’R which of the fol
azamat

Hey there! I'm happy to help!

When rotating a point 90 degrees clockwise about the origin, our original point (x,y) becomes (-y,x), because it is now at a negative y-value.

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