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Rainbow [258]
3 years ago
13

Which of the following sets is NOT closed under addition.

Mathematics
1 answer:
Veronika [31]3 years ago
7 0

Answer:

Step-by-step explanation:

The odd numbers.

Suppose you have 31 and 27 when you add these two together, you get 58 which is not an odd number.

If you need a more mathematical proof, you could do it this way.

2x+1

2x is even. Anything multiplied by 2 is even. When you add 1 you get an odd number

So continue on

2y + 1 is the other number.

2x + 1 + 2y + 1 = 2(x + y) + 2

2 (x + y ) is even. When you add 2 to it, nothing changes. The result is still even.

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Find the missing sides, and give the simplified form of the square root
Brilliant_brown [7]

Answer:

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Step-by-step explanation:

In case you are wondering, I used the pythagorean theorem. If you want to learn how to use it I suggest you google it, there are plenty of sites that explain how to use it.

If you have any questions about the way I solved it, don't hesitate to ask me in the comments below :)

7 0
3 years ago
1. What is the correct way to write 3,350,000 in scientific notation? * O 3.35 x 10^6 O 3.35 x 10^10 335 x 10^5 O 335 x 10^9
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We have the following:

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1 year ago
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He graded 60/75 papers.

If you divide these numbers instead of trying to simplify it equals the decimal 0.8.

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3 years ago
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Snowcat [4.5K]

1. 25n + 0.08 (25n) + 17, simplified is 27n + 17

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Helen [10]

Answer:

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Step-by-step explanation:

7 0
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