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blagie [28]
2 years ago
7

What are the values of x and y?

Mathematics
1 answer:
3241004551 [841]2 years ago
3 0

Answer:

its D hope this helps

Step-by-step explanation:

pls mark brainliest

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A person that is 5 feet tall casts a shadow 25 feet long. How long is the shadow of a tree that is 15 feet tall?
fiasKO [112]
The person and his shadow make a right triangle as well as the tree and it's shadow. they will be similar right triangles containing angles that are equal. I'm in similar triangles the angles are proportional so a ratio could be used to determine the shadow length. this ratio is:
25/5 = x/15
(Notice that both the height of the person and
the height of the tree height of the tree are on
the bottom because these would be similar
sides and the same for the shadows with both
on top. this could easily have been switched
with the shadows on bottom and heights on
top like:
5/25 = 15/x
however I noticed the 25/5 could easily be
reduced. this eliminated the need for cross
multiplication.)

The 25/5 can be reduced to 5:
5 = x/15
and then multiply both sides by 15 and you get:
x = 75
so the answer is 75 feet long.

this can be checked various ways. using trigonometry we have the opposite and adjacent sides so tangent could be used to find the angle between the shadow and the hypotenuse. this is:
tan (x) = opposite/adjacent
opposite = height
adjacent = shadow
so:
tan (x) = 5/25 for person
tan (x) = 15/75 for tree
these equations both reduce to:
tan (x) = 1/5
And of both equations are the same then the angLee are equal creating similar triangles and a correct answer
4 0
3 years ago
A child gets 1 egg on their
diamong [38]

Answer:91 years

Step-by-step explanation:

4 0
3 years ago
9. A box contains three disks painted gold (81,82,83), three disks painted silver (s1, 32, 33) and one
Illusion [34]

Answer:

c

Step-by-step explanation:

7 0
2 years ago
PLS HELP ASAP
Anna007 [38]
Use math-way!!!!!!! I promise you won’t need to waist your points.%
7 0
2 years ago
Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.
vladimir1956 [14]

Answer:

Step-by-step explanation:

First you divide the total mulch (77 1/2) by the amount per bag (2 1/4). This will tell you how many bags of mulch you have.

The answer is 34.4444444 which is 34 full bags of mulch.

Now if one bag is $2.25, then what is 34 bags?

$2.25 multiplied by 34 is $76.5

Hope this helps your understanding

5 0
2 years ago
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