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Jlenok [28]
3 years ago
15

Y = {(2,6), (3, 1, 4), (1). (5, 6)} Is y a function and why?

Mathematics
1 answer:
Keith_Richards [23]3 years ago
6 0

Answer:

D. No, the elements of the set of y are not all ordered pairs.

Step-by-step explanation:

Answer A. looks plausible: There are a few ordered pairs in this list, but that is not good enough.

All elements of the set should be ordered pairs and that is not the case. So answer D is correct.

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Is -1 a rational number.
nata0808 [166]

Answer:

Yes it is a rational number

Step-by-step explanation:

Rational numbers include positive, negative numbers and 0 that can be ritten as ratio.

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3 years ago
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Solve 2-3x=-x-8 i need help on this question i cant solve this
Nikitich [7]

Answer:

x=5

Step-by-step explanation:

We start by adding 3x to both sides, giving 2-3x+3x=-x+3x-8, which after simplifying gives 2=2x-8.

We then add 8 to both sides, giving 2+8=2x-8+8, which after simplifying gives 10=2x.

We can then divide both sides by 2, giving 10/2=2x/2, which after simplifying gives 5=x, or x=5. So, x is 5.

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3 years ago
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Leokris [45]

<u>Picture 1:</u>

To figure this out, notice the pattern happening on x. It's simply counting to four, so the first blank is 1 and the next is 2.

The y coordinates seem to be going up by 9. 27 plus 9 is 36, so the answer to the fourth box is 36.

Another way to see how this is correct is to notice that the x is multiplying by 9 to get y. It works out as you look at it and plug it in!

<u>Picture 2:</u>

Yes, this is a proportional relationship. Since Dennis is adding 3 logs every hour, it is keeping a consistent pattern.

<u>Picture 3:</u>

If Jane is driving 60 miles per hour, the first hour she would've gone 60 miles. After a second hour, she would've gone 120 miles. Multiply 60 to your x coordinates to figure this out. You should get 60, 120, 180, and 240 for each box.

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3 years ago
What integers are plotted on the number line below?
Nonamiya [84]

The correct answer would be D because if there are points at -8 and -2, those are the numbers that are plotted.

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4 years ago
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AVprozaik [17]
The answer is D 4+6=7+8
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4 years ago
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