2 I believe us the correct answer
Answer:
-3x+1/4
Step-by-step explanation:
<u>Addition:</u>
-4x+1/2x+1/2x=-3x
<u>Subtraction:</u>
3/4-1/2= 1/4
I hope this helps u
Answer:
Scale factor = 1.5
Step-by-step explanation:
Formula for the scale factor,
Scale factor =
In this question, image is triangle Y and preimage is triangle X.
Scale factor of X to Y =
= 1.5
Therefore, scale factor = 1.5 is the answer.
Answer: The height of the building is 6.49 meters.
Step-by-step explanation:
This can be translated to:
"A building projects a 7.5 m shadow, while a tree with a height of 1.6 m projects a shadow of 1.85 m.
Which is the height of the building?"
We can conclude that the ratio between the projected shadow is and the actual height is constant for both objects, this means that if H is the height of the building, we need to have:
(height of the building)/(shadow of the building) = (height of the tree)/(shadow of the tree)
H/7.5m = 1.6m/1.85m
H = (1.6m/1.85m)*7.5m = 6.49m
The height of the building is 6.49 meters.
PQ shows the height of the triangle from its base
As P is the highest point of the triangle
and Q lies on the base of the triangle
So PQ is the height of the triangle
And the height of any triangle is also known as the altitude of the triangle
So
PQ is nothing but the Altitude of this triangle
So option D is correct
Altitude