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zhannawk [14.2K]
3 years ago
13

Un edificio proyecta una sombra de 7.5m.mientras que un arbol que mide 1.6 m de altura proyecta una sombra 1.85 M¿Cual es la alt

ura dek edificio?
Mathematics
1 answer:
sattari [20]3 years ago
5 0

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.

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Answer:

e) cos(90° - x)

Step-by-step explanation:

we know that

If two angles are complementary, the cofunction identities state that the sine of one equals the cosine of the other and vice versa

The complementary angle of angle x is equal to (90-x) degrees

therefore

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3 years ago
Write an expression to model the perimeter of the rectangle. Length is x-9 and width is 3x-4. Part b The perimeter of the rectan
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Step-by-step explanation:

To find the perimeter of something, we add all of the measurements of the sides together.

A rectangle has 4 sides, this means we must double the algebraic hints given to us.

If we add them all up together it will look like this:

x-9+x-9+3x-4+3x-4=138

If we simplify it by collecting the like terms:

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We add 26 onto 138

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164÷8= 20.5

Answer:

x=20.5cm

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3x-4 is 57.5

I know that you will not give 100 points but just wanted to help.

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3 years ago
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Which rectangle could be created from a parallelogram with a base of 6 and a height of 2?
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Answer:

A rectangle with a length of 6 and width of 2.

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Step-by-step explanation:

5 0
3 years ago
How do you find area of a trapezoid I will mark brainliest for the most explained and simple answer!!!!
kakasveta [241]

Answer:

A = ((a+b)/2)h

Step-by-step explanation:

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