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Alexus [3.1K]
3 years ago
11

Square ABCD has coordinates A(−10, 5) , B(10, 5), C(10, 0) , and D(−10, 0) . Square A'B'C'D' has coordinates A′(−10,−5),B′(10,−5

) , C'(10, 0) , and D′(−10, 0) . Square A"B"C"D" has coordinates A′′(−2, −1), B′′(2, −1) , C"(2, 0) , and D′′(−2, 0) .
Which transformations describe why squares ABCD and A"B"C"D" are similar?

​ A).Square ABCD ​ was reflected across the y-axis and then dilated by a scale factor of 5 to form ​ square A"B"C"D" ​

​ B).Square ABCD ​ was dilated by a scale factor of 5 and then rotated 90° counterclockwise to form ​ square A"B"C"D" ​ .

C).​ Square ABCD ​ was reflected across the x-axis and then dilated by a scale factor of 1/5 to form square A"B"C"D" .

D).​ Square ABCD ​ was dilated by a scale factor of 1/5 and then rotated 90° counterclockwise to form ​ square A"B"C"D" ​
Mathematics
1 answer:
neonofarm [45]3 years ago
8 0
The answer would either be A or D
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Ratio: 3:4 also 3/4

How to use it?

Example question: If there are 3 boys for every 4 girls and there are 27 boys in the class, how many girls are there?

How to set up the ratio:

3 27
— = —
4 x


Solve it?

[Cross Multiply]

3x= 108

[Divide]

X= 36

How to check it?

Reduce 27/36 and see if it equals 3/4

OR

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1.12

Step-by-step explanation:

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3 years ago
Which expressions are equivalent. Picture Provided. NO LINKS! NEED ANSWER ASAP
DIA [1.3K]

Answer:

B) 3^-5 <em>(1 / 243)</em> and D) 2^5 x 6^-5 <em>(</em><em>1</em><em> </em><em>/</em><em> </em><em>2</em><em>4</em><em>3</em><em>)</em>

Step-by-step explanation:

3 to the negative 5th power as a fraction is

1 / 243.

2 to the power of 5 multiplied by 6 to the power of negative 5 also equals 1 / 243.

Both expressions are equivalent to 2^5 / 6^5 because they equal the same thing (1 / 243).

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