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barxatty [35]
2 years ago
8

Pls help someone pls pls help I have exam tomorrow

Mathematics
1 answer:
ladessa [460]2 years ago
4 0

Answer:

n(A \cup \: B) = n(A) + n(B) - n(A \cap \: B)\\ = 9 + 11 - 5 = 15 \\

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3 years ago
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kati45 [8]

Answer:

The top angle of the triangle is, X = 68°.

Step-by-step explanation:

Let there is a triangle named PQR with bottom corner angles ∠ P and ∠ Q and the ∠ R is the angle at the top.

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