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erastova [34]
3 years ago
5

What is the rule of the reflection

Mathematics
2 answers:
LUCKY_DIMON [66]3 years ago
7 0

The third one is the answer


Darina [25.2K]3 years ago
4 0

Answer: r_{y-axis}(x,y)\rightarrow(-x,y)

Step-by-step explanation:

From the given picture, it cam be seen that the two triangles are reflection of each other.

Such that their corresponding x coordinate has different sign but same magnitude and the corresponding y-coordinate remains unchanged.

Thus, the reflection must be reflection across y-axis.

The rule of the reflection across y-axis is given by:-

r_{y-axis}(x,y)\rightarrow(-x,y)

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55.5% repeating as a decimal​
liberstina [14]

Answer:

0.555

Step-by-step explanation:

When you ask, "What is 55.5 as a decimal?", we assume you want to know what 55.5 percent is as a decimal. In other words, 55.5 percent converted to decimal.

First, we will tell you why it is useful to know 55.5 as a decimal.

Normally, to calculate 55.5 percent, you would multiply a number by 55.5 percent and then you would take the product of that and divide it by 100 to get the answer.

Instead, you can simply multiply a number by 55.5 as a decimal to get the answer.

55.5 percent means 55.5 per hundred. Therefore, to get 55.5 as a decimal, all you have to do is divide 55.5 by 100 like so:

55.5 ÷ 100 = 0.555

5 0
3 years ago
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Solve the equation. <br><br> 2.2= z - 1.1 <br> z=?
fredd [130]

Answer:

z = 3.3

Step-by-step explanation:

Given

2.2 = z - 1.1 ( add 1.1 to both sides )

3.3 = z

7 0
2 years ago
Any help would be appreciated(brainly for best answer)
svp [43]

Answer:

i believe it is the answer on the right because alternate interior angles add up to 180 degrees

3 0
3 years ago
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436+789+6543-34+368-23=<br><br><br> 15 points
dmitriy555 [2]
The answer is 8079. :)

 
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3 years ago
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A medical study investigated the effect of calcium and vitamin supplements on the risk of older Americans for broken bones. A to
timofeeve [1]

Answer:

\frac{37}{389}

Step-by-step explanation:

Given that a  medical study investigated the effect of calcium and vitamin supplements on the risk of older Americans for broken bones. A total of 389 older Americans who lived at home and were in good health were studied over a three-year period. While all of the 389 people took in at least 700 milligrams of calcium and 200 units of vitamin D through their normal diet, 187 of them were given additional supplements containing 500 milligrams of calcium citrate and 70 units of vitamin D daily. Of the 187 who took additional supplements, 11 of them suffered broken bones over the three-year period. Of the 202 older Americans who did not take the additional supplement, 26 of them suffered broken bones over the study period.

                     Group I           Group II           Total

n                      187                  202                389

favour x             11                    26                  37

The fraction of older Americans who were included in the study suffered broken bones during the three-year period

=Total x/total n

= \frac{37}{389}

4 0
3 years ago
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