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Nady [450]
2 years ago
10

Out of 2 9 15 21 is not a composite

Mathematics
2 answers:
Lana71 [14]2 years ago
4 0

Answer:

2

Step-by-step explanation:

2 is actually a prime number because composite numbers have more than 2 factors but prime numbers don't.

Harrizon [31]2 years ago
4 0
Answer: 2 Your Welcome!
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Answer:

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Step-by-step explanation:

This is a simultaneous equation question and we will have to solve using substitution method

So let's solve

y=-2x+4...(1)

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Let's substitute (2) into (1)

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