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saveliy_v [14]
2 years ago
6

Anyone know this problem need asap

Mathematics
1 answer:
nekit [7.7K]2 years ago
3 0

Answer:

The answer to your query would be the Third Answer Choice.

Step-by-step explanation:

> First we need to find where the point (3,0) lies on the graph. We can do this by looking at the x coordinate, being 3, and the y, being 0. Keep in mind that the solution is where the two lines meet, not where the point on the graph is.

> This gets us to 3 on the x line, and no further. We then need to find which has an intersection of both lines on that point. If it is not (0,3), it is not the correct answer, which we are looking for.

> The first graph has a solution of (0, -1.5), as this is where the lines intersect. This is not (3, 0), so this is not our answer.

> The second graph’s lines intersect at (0,1), and since that is the solution of the graph, it is not the correct answer.

> The third graph’s lines intersect at (3, 0), and since this is it’s solution, it is the correct answer. Since we cannot be 100% sure, we still need to continue with checking the last graph.

> The fourth and last graph’s lines meet at (0,3), which is not what we are looking for, and is henceforth wrong.

> Once again, the correct answer is the Third Answer Choice. All the other graph’s have solutions on points other than (3,0), so they are not our answers.

> I hope this answered your query and any other questions you may have had on the subject. #LearningWithBrainly

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Step-by-step explanation:

For this case we have the following info given:

\sigma = 0.73 represent the population deviation

\bar X = 84.5 represent the sample mean

n =60 represent the sample size

And we want to find the margin of error for a confidence level of 95%. So then the significance level would be \alpha=1-0.95 = 0.05 and \alpha/2 =0.025. The margin of error is given by:

ME = z_{\alpha/2} \frac{\sigma}{\sqrt{n}}

The critical value can be founded in the normal standard distribution table using the value of \alpha/2 =0.025 and we got z_{\alpha/2}=1.96. Replacing the info given we got:

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