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Svetach [21]
3 years ago
9

37. Rectangle ABCD is graphed on a coordinate

Mathematics
1 answer:
Firlakuza [10]3 years ago
6 0

AC # A'B'

Step-by-step explanation:

While solving the above problem one must keep in mind that

  • Reflection along Y-axis would just make the rectangle upside down at the same distance from X-axis in the down direction.

Thus, from the figure it becomes clear that

  • AB ∦ B’D’
  • CD║A’B’
  • BD ∦ C’D’

Only statement that comes out true is the third statement which states that AC is not parallel to A’B’

Since the diagonal of a rectangle can not be parallel to one of its side (though the side in question is side of the same rectangle reflected in y axis)

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(5 + 4 - 2) x (-2) = ? <br> A. -22<br> B. 22 <br> C. 14 <br> D. -15
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Answer:

For 90% CI = (0.428, 0.572)

For 98% CI = (0.399, 0.601)

The confidence interval (and Margin of error) reduces when 90% confidence level is used compared to when 98% confidence level is used.

Step-by-step explanation:

Confidence interval can be defined as a range of values so defined that there is a specified probability that the value of a parameter lies within it.

The confidence interval of a statistical data can be written as.

p+/-z√(p(1-p)/n)

Given that;

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Substituting the values we have;

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0.50 +/- 1.645√(0.001893939393)

0.50 +/- 0.071589436011

0.50 +/- 0.072

(0.428, 0.572)

The 90% confidence level estimate of the true population proportion of students who responded "yes" is (0.428, 0.572)

For 90% CI = (0.428, 0.572)

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The confidence interval (and Margin of error) reduces when 90% confidence level is used compared to when 98% confidence level is used.

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