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max2010maxim [7]
2 years ago
7

Do you think a sequence of translations across the x- or y- axis and/or reflections on a figure could result in the same image a

s a 90- degree clockwise rotation? Explain why or why not
Mathematics
2 answers:
vlabodo [156]2 years ago
5 0

I think just two reflections would do it.


First we reflect around y = -x, the 45 degree line through the origin and the second and fourth quadrant.


Then we reflect through the y axis, x=0.


The composition of the two reflections is equivalent to a 90 degree clockwise rotation.



faust18 [17]2 years ago
4 0

Answer:

No, it is not possible to get the same image as a 90-degree clockwise rotation using only translations and/or reflections. In the rotation, the x- and y-coordinates are switched. There is no way to reverse the order of the coordinates using only reflections or translations.

Step-by-step explanation:

*It is not possible.

*The coordinates need to be reversed.

*You cannot reverse coordinates using only reflections and translations.

Guest
1 year ago
thx
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At a rally attended by 520 people, 30% were fantes, 25% were ewes, 15% were nzemas, 20% were gas and the rest were gonjas. How m
mariarad [96]

Answer:

No. of gonjas = 52

No. of more nzemas than fantes = 78

Step-by-step explanation:

Total no. of people = 520

No. of fantes = \frac{30}{100} × 520

No. of fantes = 156

No. of ewes = \frac{25}{100} × 520 = 130

No. of nzemas = \frac{15}{100} × 520 = 78

No. of gas = \frac{20}{100} × 520 = 104

No. of gonjas = 520 - (156 + 130 + 78 + 104) = 52

No. of fantes = 156

No. of nzemas = 78

No. of more nzemas than fantes = 156 - 78 = 78

Pie chart of the following problem is shown below.

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2 years ago
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A and b are natural numbers. The diameter of cell a is 2.3 , and the diameter of cell b is 2.3 .
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After clarification we see the respective diameters are

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We're asked about the ratio

A:B =  2.3 \times 10^{-a} :  2.3 \times 10^{-b} = 10^{-a} : 10^{-b} = 10^b : 10^a = 10^{b-a} : 1

Now we can go through the choices.

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It would be more proper to say the diameter of cell A is 100 times the diameter of cell B, but yes, this is TRUE.

B. If a = 4 and b = 6, then cell b is 100 times greater than cell a.

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C. If a = 4 and b = 6, then cell a is 2 times greater than cell b.

FALSE. We already calculated its 100 times bigger.

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8 0
2 years ago
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anzhelika [568]

Answer:

14t + 58 ≤ 150

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If she cannot spend more than what she has, which is 150, the inequality sign has to be "less than or equal to".  It's ok if she spends less than 150, but not ok if she spends more, because she doesn't have it to spend.

We know the cost of 1 pair of jeans is 58.  Now she wants to make up the difference by getting as many $14 shirts as possible (the number of shirts being our unknown).  

That means that the cost of the jeans PLUS the unknown number of shirts cannot exceed 150.

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What value of n makes the equation true? -1/5n + 7 =2
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The answer is 25.
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