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boyakko [2]
2 years ago
12

The point (0, 0) is a solution to which of these inequalities?

Mathematics
2 answers:
Marat540 [252]2 years ago
6 0
The answer to this question is
d.y-5 <3x-4
Alenkinab [10]2 years ago
6 0

Answer:

D. y – 5 < 3x – 4

Step-by-step explanation:

When you replace a point in an inequality, and that point is a solution of it, the inequality must remain true.

Let's replace the (0,0) on each inequality and see where does this happen.

In each inequality, we will replace the x and the y with a 0.

A.  y + 5 < 3x – 4

0 + 5 < 3*0 - 4

5 < 0 - 4

5 < -4

That's not true because a negative number can't be greater than a positive one.

B.  y + 5 < 3x + 4

0 + 5 < 3*0 + 4

5 < 4

False, 5 is greater than 4.

C.  y – 4 < 3x – 5

0 - 4 < 3*0 - 5

-4 < -5

If we multiply by -1 on both sides, we need to change the direction of the inequality

4 > 5

False.

D.  y – 5 < 3x – 4

0 - 5 < 3*0 - 4

-5 < -4

5 > 4

True.

Therefore, the point (0,0) is a solution of D.

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Answer:

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Step-by-step explanation:

let's be honest when in doubt just put c

5 0
2 years ago
In a normally distributed data set a mean of 55 where 95% of the data fall between 47.4 and 62.6, what would be the standard dev
tresset_1 [31]

Answer:

The standard deviation of that data set is 3.8

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviation of the mean.

99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

Mean = 55

95% of the data fall between 47.4 and 62.6. This means that 47.4 is 2 standard deviations below the mean and 62.6 is two standard deviations above the mean.

Using one of these points.

55 + 2sd = 62.6

2sd = 7.6

sd = 7.6/2

sd = 3.8

The standard deviation of that data set is 3.8

6 0
2 years ago
A test has a mean of 80 with a standard deviation of 4. Which of the following scores is within one standard deviation of the me
Bogdan [553]

Answer:

B

Step-by-step explanation:

Mathematically, we shall be using the z-score here

Z-score = (x-mean)/SD

From the question, mean = 80 and SD = 4

So we want to get the option in the question that has a z-score of 1 or below

Let’s look at 75

80-75 = 5 ( this is clearly above 1 standard deviation of 4)

For 77;

80 -77 = 3

This is less than the standard deviation of 4, meaning it is within 1 standard deviation of the mean

7 0
2 years ago
A cell phone company collected data if texting speed in words per minute according to time in minutes. explain why a scatter plo
bekas [8.4K]

Answer:

Scatter plots resembles line graphs in that they are plotted on the x and y axis. The are used because they show how much one variable is affected by another.

Scatter diagrams are important since in statistics they can show the extent of correlation, if any, between the values of observed quantities or a behavior.


7 1
2 years ago
Read 2 more answers
One column of numbers consists of 61, 24, and 47. When the digits of the numbers are added together, the result is 6 + 1 + 2 + 4
ololo11 [35]
The question is incomplete because it must content a list of choices to select the right one.

Any way, a conclusion that you can make, and that is a common one for this kind of questions, is about whether the sum of the numbers of the second column may or not be the same sum of the numbers of the first column.

The condition for the two sums be the same is that when the digits of the second column are added together the result be the same obtained for the sum of the digits of the first column. In this case that is 6.

So, the possible answer is:

<span>If the end result from the second column is not 6, then the sum of the numbers in the first column is not equal to the sum of the numbers in the second column.</span>
5 0
2 years ago
Read 2 more answers
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