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Arada [10]
4 years ago
14

Which statement correctly describes the diagram? On a coordinate plane, triangle A is reflected across the x-axis to form triang

le B. Triangle A is rotated to form triangle C. Triangle B is a reflection of triangle A across the x-axis. Triangle C is not a reflection of triangle A.. Triangle B is a reflection of triangle A across the y-axis. Triangle C is a reflection of triangle A across the line y = x + 3. Triangle B is a reflection of triangle A across the y-axis. Triangle C is not a reflection of triangle A. Triangle B is a reflection of triangle A across the x-axis. Triangle C is a reflection of triangle A across the line y = x + 3.

Mathematics
2 answers:
Luda [366]4 years ago
7 0

Answer:

Without the picture of diagram, based on your description:

Triangle A is reflected across the x-axis to form triangle B.

Triangle A is rotated to form triangle C.

Option A: Triangle B is a reflection of triangle A across the x-axis.

It is correct because "Triangle A is reflected across the x-axis to form triangle B" => Triangle B is a reflection of triangle A across the x-axis

Option B: Triangle C is not a reflection of triangle A

It is correct because "Triangle A is rotated to form triangle C"

Option C: Triangle B is a reflection of triangle A across the y-axis

It is incorrect, because "Triangle A is reflected across the x-axis to form triangle B" => Triangle B is a reflection of triangle A across the x-axis, not y-axis.

Option D: Triangle C is a reflection of triangle A across the line y = x + 3

It is incorrect, because "Triangle A is rotated to form triangle C" => triangle C is a result of rotation, not reflection.

Hope this helps!

:)

arsen [322]4 years ago
3 0

Answer:

Your answer would be Triangle B is a reflection of triangle A across the x-axis. Triangle C is not a reflection of triangle A.

Explanation

B is a reflection of the x-axis.

But triangle C is not a reflection because if you fold the image with the y-axis line in the middle then you would see that triangle C doesnt match the placement of triangle A.

hope this helps

give brainliest if you please

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2. If a polyhedron has 19 vertices and 13 faces, how many edges does it have?
Margaret [11]

Answer:

30 Edges.

Step-by-step explanation:

Euler's formula tells us that V-E+F=2 (Vertices - edges + faces = 2).

Plug the numbers in:

19-E+13=2

Solve:

32-E=2

32=2+E

30=E

Therefore, there are 30 edges.

6 0
3 years ago
Find the slope of the line.
pickupchik [31]
There are several ways to do this.
I'll show you two methods.

1) Pick two points on the line and use the slope formula.
Look for two points that are easy to read. It is best if the points are on grid line intersections. For example, you can see points (-4, -1) and (0, -2) are easy to read.
Now we use the slope formula.

slope = m = (y2 - y1)/(x2 - x1)

Call one point (x1, y1), and call the other point (x2, y2).
Plug in the x1, x2, y1, y2 values in the formula and simplify the fraction.

Let's call point (-4, -1) point (x1, y1).
Then x1 = -4, and y1 = -1.
Let's call point (0, -2) point (x2, y2).
Then x2 = 0, and y2 = -2.

Plug in values into the formula:

m = (y2 - y1)/(x2 - x1) = (-2 - (-1))/(0 - (-4)) = (-2 + 1)/(0 + 4) = -1/4

The slope is -1/4

2) Pick two points on the graph and use rise over run.
The slope is equal to the rise divided by the run.
Run is how much you go up or down.
Rise is how much you go right or left.

Pick two easy to read points.
We can use the same points we used above, (-4, -1) and (-0, -2).
Start at point (0, -2).
How far up or down do you need to go to get to point (-4, -1)?
Answer: 1 unit up, or +1.
The rise is +1.
Now that we went up 1, how far do you go left or right top go to point (-4, -1)?
Answer: 4 units to the left. Going left is negative, so the run is -4.
Slope = rise/run = +1/-4 = -1/4

As you can see we got the same slope using both methods.
6 0
4 years ago
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Vika [28.1K]
The answer is C

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8 0
3 years ago
Read 2 more answers
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4 years ago
Who knows how to answer this. It's Dividing complex numbers.​
Elodia [21]

Answer:

answe is 1+i

<em><u>mark this as brainliest!!</u></em>

<em><u>mark this as brainliest!!follow me</u></em>!

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