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MariettaO [177]
2 years ago
10

Let A={1,3,6,7} B={1,2,6,7} and C={3,6,7,9} Find (AΠB)ΠC​

Mathematics
1 answer:
Gemiola [76]2 years ago
3 0

Answer:

{(1,6,7)(6,7)

step by step

A intersect B is equally to (1,6,7) intersect B (6,7)

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dybincka [34]

Answer:

16/45

Step-by-step explanation:

Step 1:  When dividing fractions, use “KFC”.  It means Keep the first fraction, Flip the second one, and  

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-4/20 ÷ -9/16    →    -4/20 ∙ 16/-9

Step 2:  Reduce any fractions if necessary, it makes multiplying them easier and you will have to reduce anyway at the end.  It’s easier arithmetic to reduce at this step.  The first fraction reduces because both the numerator and denominator are divisible by 4.  

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Step 3:  Multiply numerators and denominators together to get one fraction

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Vikentia [17]

Answer:

x ≈ 14.57

Step-by-step explanation:

using the sine ratio in the right triangle

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