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Ivahew [28]
3 years ago
12

Line segment EF is shown on a coordinate grid: A coordinate plane is shown. Line segment EF has endpoints negative 3 comma 2 and

negative 1 comma 2. The line segment is rotated 180 degrees counterclockwise about the origin to form E'F'. Which statement describes E'F'? E'F' is perpendicular to EF. E'F' and EF are equal in length. E'F' is half the length of EF. E'F' is greater than twice the length of EF.
Mathematics
1 answer:
iren [92.7K]3 years ago
6 0

Answer:

The answer is " E'F' and EF are equal in length".

Step-by-step explanation:

By rotating that through some degree, a revolution is some kind of rigid transformation, which creates an image of the very same shape and size. There will be two main properties of the rotation:

  • Preservation of rotating scale (including sides and angles).
  • The lines connecting the rotation center to the pre-image and the corresponding image point are of equal length.

In each line, the segment is rotated counterclockwise 180 degrees around the origin to form E'F, that's why the above given choice is correct.

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There are 5 red marbles, 2 Green marbles and 3 black marbles. What is the probability that red or black is chosen?(answer in dec
ANEK [815]

Answer:

.8

Step-by-step explanation:

5 red marbles, 2 Green marbles and 3 black marbles = 10 marbles

P (red or black) = number of red or black/ total

                          = (5+3)/10

                          =8/10

   decimal form  = .8

5 0
3 years ago
Read 2 more answers
I need both 17 and 18 please
wolverine [178]

Answer:

17. 37

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Step-by-step explanation:

Use the formula a squared + b squared = c squared. (a^2 + b^2 = c^2)

For number 17 first square both your side lengths of 12 and 35 to get 144 and 1225.

Then add them together to get 1369. That is your c^2 but now you have to find the square root to get your side length of c. Once you find the square root of 1369 you should get an answer of 37 for your missing side.

Using the same formula of a^2 + b^2 = c^2 you square the two side you’re given and get 576 + b^2 = 676

Since it gives you your a and c side lengths all you do is subtract your a from your c (676 - 576) to get 100 which is your b^2. Then you find the square root of 100, which is 10 because 10 times itself is 100, you’ll have your b side length of 10

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3 years ago
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Vlad1618 [11]
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sveta [45]

Answer: True

Step-by-step explanation:

Substitute -1 for x and 1 for y in the equation y = 4x + 5

(1) = 4(-1) + 5

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Therefore,  the point (–1, 1) satisfies the equation y = 4x + 5

8 0
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