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rosijanka [135]
3 years ago
5

Is this correct?

Mathematics
1 answer:
Kitty [74]3 years ago
4 0

i believe it is 173 and 145.

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if x and y are two overlapping subsets of a universal set U, write the relation between n(U),n(X U Y), and n(xūy).​
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Answer:

the relation between them are

n(U) = n(X U Y) + n(xūy).

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(sorry I don't understand your language but, here's my answer)

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mezya [45]
The answer is B because C and D are not true. Angle-Angle theorem does not prove congruency. Hypotenuse-Leg does because having a hypotenuse means that the triangle is a right angle triangle, which means that 2 sides and an angle are congruent in the triangles. By Side-Side-Angle Theorem, the triangles are congruent.
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Vinvika [58]

Answer:

51.9

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because one side is 30 and another is 60, you can assume the 3rd side of the triangle is 51.9 because of the 30-60-90 rule which states that if each angle of a triangle is 30, 60, and 90, then the side lengths equal x (30), 2x (60), and x√(3) (~51.9).

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