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rusak2 [61]
2 years ago
11

A rigid transformation can also be referred to as an isometric transformation. The prefix "iso-" means "of the same" and "-metri

c" means "measure." How does the meaning of the word isometric relate to determining if an isometric transformation occurred?
Mathematics
2 answers:
Svetllana [295]2 years ago
8 0
As stated by the statement, isometric means same measure. So, when a rigid transformation occurs all the measures of the original figure (which will be transformed) will be the same of the new figure (the result of the transformation).


That means that you can verify that the transformation used was rigid by checking the measures of both (original and transformed) figures: if and only if the meausures of the final figure are the same of the original figure the transformation was rigid.
Tcecarenko [31]2 years ago
3 0

Answer:

An isometric transformation creates an image that is congruent to the pre-image. All corresponding line segments and angle measures are equal.

Step-by-step explanation:

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Anuta_ua [19.1K]

Answer:

The critical value is T = 1.895.

The 90% confidence interval for the mean repair cost for the washers is between $48.159 and $72.761

Step-by-step explanation:

We have the standard deviation for the sample, so we use the t-distribution.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 8 - 1 = 6

90% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 6 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.9}{2} = 0.95. So we have T = 1.895, which is the critical value.

The margin of error is:

M = T\frac{s}{\sqrt{n}} = 1.895\frac{18.36}{\sqrt{8}} = 12.301

In which s is the standard deviation of the sample and n is the size of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 60.46 - 12.301 = $48.159

The upper end of the interval is the sample mean added to M. So it is 60.46 + 12.301 = $72.761

The 90% confidence interval for the mean repair cost for the washers is between $48.159 and $72.761

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3 years ago
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Answer:

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Answer:

see explanation

Step-by-step explanation:

Calculate the slope m using the slope formula

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