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aivan3 [116]
3 years ago
13

2+9=-6 is it open or closed ​

Mathematics
2 answers:
denis-greek [22]3 years ago
4 0

Answer:

closed

Step-by-step explanation:

recall that a closed equation is either always true or always false

in our case:

2+9 = -6

11 = -6  

It is obvious to us that 11 is never ever going to equal -6, hence this equation is always false. And by the definition above, it is a closed equation.

pychu [463]3 years ago
3 0

Answer:

closed

Step-by-step explanation:

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LuckyWell [14K]

Answer:

<em>Tadeo Volunteered for 12 hours while Dylan volunteered for 2 hours</em>

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Let the total number of hours Tadeo volunteered be x

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Given:

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