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Masteriza [31]
3 years ago
6

Suppose a ⊆ c, and b and c are disjoint. prove that if x ∈ a then x ∈/ b.

Mathematics
1 answer:
Anuta_ua [19.1K]3 years ago
8 0
If x\in A, then clearly x\in C. We're given that B and C are disjoint, so no element in C is also in B. This means x\not\in B.
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Serjik [45]
Part A: This data does represent a function because no value of x is repeated.
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4 0
3 years ago
27x + 24y= 4.5<br><br> 1.5x + y =0.225
Goryan [66]

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Step-by-step explanation:

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Add (1) and (3) term by term to eliminate y

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Substitute x = 0.1 into either of the 2 equations and solve for y

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y = 0.075

3 0
3 years ago
Read 2 more answers
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