3 years ago

X + y is rational, must x and y each be rational

2 answers:

7 0

The rationals are closed under addition, so if x,y are rational then x+y must be rational since Q is a group under addition.

3 0

Yes because x and y must be integers

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Pavel [41]

16 desserts 8+8+8+8+8= 40 so 2/5 of 40 is 16
Hope this help Have a great day.

4 0

3 years ago

Basile [38]

Answer:

2x-6

Step-by-step explanation:

twice a number is

$2\times x\\\\=2x$

6 less than twice a number is

6 less than 2x and that is

$2x-6$

6 0

3 years ago

hjlf

Answer:

rewrwefe

Step-by-step explanation:

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2 years ago

lara [203]

I'm not sure sry maybe you should of studied

3 0

3 years ago

Alexandra [31]

Answer:

{-2, -1, 1, 5, 6}

Step-by-step explanation:

The domain includes the five x-values (inputs): {-2, -1, 1, 5, 6}

8 0

3 years ago