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2 years ago

Which relation is a function?

Mathematics

1 answer:

NARA [144]2 years ago

8 0

Answer:

A function means that we get one input and one output. In this example that means for every x-value that we have, we only have one y-value.

Looking at the first option, we can see that there is no x-value that has more than one y-value which means that it is a function.

The rest of the options are seen with at least two values for one x-value in one of the points. Therefore, they wouldn't be considered a function leaving us with only option A as the solution.

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Which of the following numbers can be expressed as a decimal that<br> terminates 9/7 5/3 3/2 6/4

podryga [215]

Answer:

Last 2 terminate

Step-by-step explanation:

9/7 does not terminate: 1.285724285724285724...

5/3 does not terminate: 1.66666666666666666...

3/2 does terminate: 1.5

6/4 same thing as 3/2 = 1.5

C and D terminate.

8 0

3 years ago

A department store, on average, has daily sales of $28 comma 286.28. The standard deviation of sales is $1 comma 500. On Tu

wolverine [178]

Answer:

z-score = 4.43,

It is a Good day

Step-by-step explanation:

The provided information is:

Mean = $28,286.28

Standard deviation = $1,500

Let x be the sell of department store on Tuesday.

Then, x = $34,924.62

The z-score is define as:

$z=\dfrac{x-\mu}{\sigma}\\\\=\dfrac{34924.62-28286.28}{1500}\\\\=4.43$

Thus, the Tuesday's z-score is 4.43. So this is usually good day.

3 0

3 years ago

Write the equation of the line parallel to y=6 that passes through the point (2, -3).

Zanzabum

Answer:

-3=(1/2)(2)+3

Step-by-step explanation:

6 0

3 years ago

What is the answer for <br> h+6/5=2

WARRIOR [948]

h=4 because 4+6=10 and 10/5=2

6 0

3 years ago

Read 2 more answers

the number of a certain company’s video stores can be approximated by the linear equation y=-264x+4682, where x is the number of

kogti [31]

This problem is incomplete, but I think I know the probable question. Normally, you should have been given the target number of the company's video stores, so that you can replace the value of y and solve for x. Once you solve for x, you add this to year 1990 then you can solve for the year at which you can reach your target value. Suppose y = 3500 stores.

3500 = -264x + 4682
3500 - 4682 = -264x
-1182 = -264x
x = 4.48 years

Technically, that is equal to 4 years. Hence, the year would be 1990+4 = 1994.

8 0

3 years ago