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NikAS [45]
2 years ago
6

Which rule describes the composition of transformations that maps figure ABCDE to figure A"B"C'D"E"?

Mathematics
2 answers:
Trava [24]2 years ago
7 0

Answer:

ABCDE is first transformed into A'B'C'D'E' after a reflection along m line. Then a rotation of 180° about C' is made and A"B"C'D"E" is gotten.

Step-by-step explanation:

In a reflection, the distance between the original point and the reference line is equal to the distance between the reflected point and the reference line.

meriva2 years ago
4 0

The composition of transformations that maps figure ABCDE to figure {\text{A''B''C'D''E''}} is \boxed{{\text{a reflection about line }}m{\text{ the rotate 18}}{{\text{0}}^ \circ }}.

Further explanation:

The rule of transformation of the coordinates can be expressed as follows,

\boxed{\left( {x,y} \right) \to \left( {kx,ky} \right)}

Isometry is a mapping of space to another space so that the length between the points is same as the length in the original space. Translation and the rotation are the isometries of plane.

Explanation:

In isometric transformation the shape of the original and the image remains the same and the size of the image is same as the original.

From the attached figure it has been observed that the composition of transformations that maps figure ABCDE to figure {\text{A''B''C'D''E''}} is first reflect the polygon ABCDE about line m and then rotate about 180 degree anti clockwise.

The composition of transformations that maps figure ABCDE to figure {\text{A''B''C'D''E''}} is \boxed{{\text{a reflection about line }}m{\text{ the rotate 18}}{{\text{0}}^ \circ }}.

Learn more:

  1. Learn more about inverse of the functionhttps://brainly.com/question/1632445.
  2. Learn more about equation of circle brainly.com/question/1506955.
  3. Learn more about range and domain of the function brainly.com/question/3412497

Answer details:

Grade: High School

Subject: Mathematics

Chapter: Coordinate geometry

Keywords: image vertices, triangle, dilated, lies, same line, shift four units, left, pre-imaged, dilation, center, scale factor, four, coordinates, x-coordinates, y-coordinate, transformation rule.

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A math teacher tells her students that eating a healthy breakfast on a test day will help their brain function and perform well
kogti [31]

Answer:

Step-by-step explanation:

Hello!

To test the claim that eating a healthy breakfast improves the performance of students on their test a math teacher randomly asked 46 students what did they have for breakfast before they took the final exam and classified them as:

<u>Group 1</u>: Ate healthy breakfast

X₁: Number of students that ate a healthy breakfast before the exam and earned 80% or higher.

n₁= 26

<u>Group 2: </u>Did not eat healthy breakfast

X₂: Number of students that did not eat a healthy breakfast before the exam and earned 80% or higher.

n₂= 20

After the test she counted the number of students that got 80% or more in the test for each group obtaining the following sample proportions:

p'₁= 0.50

p'₂= 0.40

The parameters of study are the population proportions, if the claim is true then p₁ > p₂

And you can determine the hypotheses as

H₀: p₁ ≤ p₂

H₁: p₁ > p₂

α: 0.05

Z= \frac{(p'_1-p'_2)-(p_1-p_2)}{\sqrt{p'(1-p')[\frac{1}{n_1} +\frac{1}{n_2}] } } }≈N(0;1)

pooled sample proportion: p'= \frac{x_1+x_2}{n_1+n_2} =\frac{13+8}{46} = 0.46

Z_{H_0}= \frac{(0.5-0.4)-0}{\sqrt{0.46(1-0.46)[\frac{1}{26} +\frac{1}{20}] } } }= 0.67

p-value: 0.2514

The decision rule is:

If p-value ≤ α, reject the null hypothesis.

If p-value > α, do not reject the null hypothesis.

The p-value: 0.2514 is greater than the significance level 0.05, the test is not significant.

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So having a healthy breakfast doesn't seem to improve the grades of students.

I hope this helps!

5 0
2 years ago
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