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ruslelena [56]
3 years ago
15

How does a reflection across the y-axis change the coordinates of a shape?

Mathematics
1 answer:
Dmitriy789 [7]3 years ago
8 0

Answer:

in (x,y), it becomes (-x,y)

Step-by-step explanation:

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Answer: its b ;p

Step-by-step explanation:

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3 years ago
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The angle of elevation to the top of a skyscraper is measured to be 2° from a point on the ground 1 mile from the building. How
Nadusha1986 [10]

See picture below for a geometric view.


Let x = height of building


We use basic trigonometry to find x.


The tangent function = opposite side of right triangle OVER adjacent side of right triangle.


tan(2°) = x/1


Solve for x.


After multiplying both sides by 1 (here 1 represents 1 mile), we get

tan(2°) = x.


We now use the calculator to find x.


In fact, you can take it from here. Use your calculator.


3 0
3 years ago
If A = (-2, -4) and B = (-8, 4), what is the length of AB?
svetoff [14.1K]

Answer: OPTION D

Step-by-step explanation:

To solve this exercise you must use the formula for calculate the distance  between two points, which is shown below:

d_{(A,B)}=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

Now, you must substitute the points given in the problem into the formula:

A(-2,-4)

B(-8,4)

d_{(A,B)}=\sqrt{(-8-(-2))^2+(4-(-4))^2}

Then, the result is:

d_{(A,B)}=10units

5 0
4 years ago
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Please answer this someone I’m desperate
ycow [4]
Coordinates: (3, -3)
this point R would be the same distance that point P is from point Q, fulfilling the statement of it being an isosceles triangle
8 0
3 years ago
Please help will brainlist
BARSIC [14]

Answer:

11. Option B

12. Option C

13. Option A

Step-by-step explanation:

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