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melamori03 [73]
2 years ago
12

Are these functions or not?​

Mathematics
1 answer:
VLD [36.1K]2 years ago
6 0

Answers:

  1. Not a function
  2. Not a function
  3. Function
  4. Not a function

=====================================================

Explanation:

A function has any given input lead to <u>exactly one</u> output.

Relation 1 has the input "paper" lead to more than one output, which are the values 9 and -3. Therefore, relation 1 is not a function.

Relations 2 and 4 are similar stories.

---------

In contrast, relation 3 has each input lead to exactly one output, which is why we have a function here.

Put another way: a function cannot have the x coordinates repeat, but the y coordinates can repeat.

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It is possible

Group 1 : 684 divided by 36 = 19$

Group 2 : 456 divided by 24 = 19$

Therefore, both groups 1 and 2 charge $19 for each ticket

7 0
3 years ago
The product of x and the sum of 6 and 8 times the square of x
Vaselesa [24]

Answer:

x(6 + 8x²) or 6x + 8x³.

Step-by-step explanation:

"The square of x" can be represented by x² and 8 times that would be 8 * x² or 8x². The sum of 6 and 8x² can be represented by 6 + x² and the product of x and 6 + x² can be represented by x * (6 + 8x²) or x(6 + 8x²) which simplifies to 6x + 8x³.

7 0
3 years ago
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State the first 3-digit multiple of 7​
Elis [28]
Da answer is 7, 14, 21
5 0
3 years ago
Answer my question and i will mark you as brainliest its that easy, trust me i promise
Lesechka [4]

Answer:

Hope that help the answer is 300

Step-by-step explanation he drives for 3 hours at a rate of 80 km per hour, multiply:

Now we need to find how far he goes in 45 minutes. There are 60 minutes in an hour, so write and simplify:

45 is three quarters of an hour, so multiply that by 80 km per hour:

Add the distances together:

At a rate of 80 km per hours, in 3 hours and 45 minutes, Tim drives 300 km.

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7 0
3 years ago
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In the name carbon dioxide, the prefix of the second word indicates that a molecule of carbon dioxide contains
kherson [118]

Answer:

The correct option is B. two oxygen atoms

Step-by-step explanation:

The molecular formula for carbon dioxide is given by :

CO_2

Here, the alphabet C stands for Carbon and the alphabet O stands for Oxygen.

And the prefixes of each of these words represents the number of atoms present of the corresponding element in one molecule of carbon dioxide.

So, The prefix of the first word that is C is 1

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