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Agata [3.3K]
3 years ago
7

Which relation is a function?

Mathematics
2 answers:
I am Lyosha [343]3 years ago
7 0

B. Because it makes a linear line.

polet [3.4K]3 years ago
4 0

The biggest rule for functions in a table is that none of the numbers in the X column are repeating. But for the Y column, it is okay to have repeats.

When you look at the answer choices, you could eliminate B, C, and D because of repeats in the x column.

A IS A FUNCTION because all the numbers in the x column are different

B is NOT A FUNCTION because in the x column, there are 2 3's

C is NOT A FUNCTION because in the x column, there are 2 -5's and 2 -10's

D is NOT A FUNCTION because there are 2 20's

Your answer would be A.

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Eighty, decreased by three times a
Marina86 [1]

Answer:

The number is 9.

Step-by-step explanation:

Lets write this as an equation first. We'll substitute the number for the variable <em>x</em>.

80 - 3x = 5x + 8

First, let's add 3x to both sides.

80 - 3x + 3x = 5x + 3x + 8

80 = 8x + 8

Next, let's subtract 8 from both sides.

80 - 8 = 8x + 8 - 8

72 = 8x

Finally, let's divide both sides by 8.

72/8 = 8x/8

9 = x

<em>"x" is 9.</em>

<em>So the secret number is 9.</em>

P.S.

This is my first answer to a Brainly question so please don't complain!

6 0
2 years ago
For maths answer this question please<br> 4x-9=6-9
snow_tiger [21]

Answer:

x = 1.5

Step-by-step explanation:

First, calculate 6-9, which is -3.

Then we add 9 on both sides so that on the left, we only have 4x, and on the right, we have 6.

Then divide by 4 on both sides to get x = 1.5

5 0
3 years ago
Read 2 more answers
Please solve this :)
Karolina [17]

Answer:

1000 is the best answer yet

8 0
3 years ago
Which expression is equivalent to 3(m − 3) + 4?<br><br> 3m + 1<br> 3m − 5<br> 3m + 13<br> 3m − 3
Volgvan

Answer:

3m - 5

Step-by-step explanation:

3(m - 3) + 4           Distribute the 3

3m - 9 + 4             Simplify

3m - 5

6 0
2 years ago
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A jazz band wants to sell $24,000 worth of tickets. If each ticket costs $80, how many tickets will the band have to sell to mee
Dafna11 [192]

Answer:

300

Step-by-step explanation:

24000/80

7 0
3 years ago
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