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sertanlavr [38]
2 years ago
11

In XYZ, what is the cosine ratio of X?

Mathematics
2 answers:
spin [16.1K]2 years ago
6 0
Yea the person on top is right, bc I also got that correct on my test LMFOAOA
Wittaler [7]2 years ago
4 0

Answer:

c) 12/15 = 4/5

Step-by-step explanation:

imagine we mirror the triangle up, so that Z is on top.

then you can clearly see that 6 is cos(X) times r (and r is then 7.5).

XY is sin(X)×7.5

and again, 7.5 is r (the line making the X angle).

so, the cosine ratio of X is

6 = cos(X)×7.5

cos(X) = 6/7.5 or then 12/15. or simplified 4/5.

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