What is the reflection image of U across the y-axis?
2 answers:
Answer:
B.
Step-by-step explanation:
We have been coordinates of some points on coordinate plane. We are asked to find the reflection image of U across the y-axis.
We know that after reflecting a point across y-axis, the y-coordinate of point remains same, while x-coordinate changes to its opposite sign.
We can see that coordinates of point U are . After the reflection across y-axis the y-coordinate will remain same that is
, while x-coordinate will be opposite of
that is
Therefore, the coordinates of point U after reflection across y-axis would be and option B is the correct choice.
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The tangent or tanθ in a right-angle triangle is the ratio of its perpendicular to its base. The distance from point C to point D is 258.8 meters.
<h3>What is Tangent (Tanθ)?</h3>The tangent or tanθ in a right-angle triangle is the ratio of its perpendicular to its base. it is given as,
where,
θ is the angle,
Perpendicular is the side of the triangle opposite to the angle θ,
The base is the adjacent smaller side of the angle θ.
The distance from point C to D is equal to the distance from point A to B. Therefore, the height of the building can be written as,
Tan(25°) = AB / BC
Tan(25°) × 555 m = AB
AB = 258.8 meters
Hence, the distance from point C to point D is 258.8 meters.
Learn more about Tangent (Tanθ):
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