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Firlakuza [10]
3 years ago
13

I need to know what the answer is

Mathematics
1 answer:
kramer3 years ago
8 0
20x is greater than or equal to 25000
x is greater than or equal to 1250
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When the angle of elevation of the sun is 78 degrees, a tree casts a 13 foot shadow. How tall is the tree?
oksian1 [2.3K]

Answer: 61.16 ft

Step-by-step explanation:

We can think in this situation as a triangle rectangle.

where:

The height of the tree is one cathetus

The shadow of the tree is the other cathetus.

We know that the angle of elevation of the sun is 78°, an angle of elevation is measured from the ground, then the adjacent cathetus to this angle is the shadow of the tree. And the opposite cathetus will be the height of the tree.

Now we can remember the relationship:

Tg(A) = (opposite cathetus)/(adjacent cathetus)

Where:

A = 78°

Adjacent cathetus = 13ft

opposite cathetus = height of the tree = H

Then we have the equation:

Tg(78°) = H/13ft

Tg(78°)*13ft = H = 61.16 ft

4 0
3 years ago
If y varies directly with x, and y is 14 when x is 2, what is the value of x when y is 35?
Ainat [17]
Im pretty sure it's 17.5 since 35 is odd.
4 0
3 years ago
Read 2 more answers
Will someone check my awnsers on my geometry b exam for me
kogti [31]
Sure but wheres the picture?
3 0
3 years ago
Help quick! I'll mark your answer as the brainliest if your answer is correct!
Anna007 [38]

Answer:

They would never intersect because they are parallel lines. You can tell they are parallel lines because they have the same slope and they have a different y-intercept. However, this doesn't mean that there was no solutions, there were, thats how i was able to tell what their slopes and y-intercepts were. So if there is an answer that you can choose from that explains that they won't intersect because they are parallel then that is the correct answer. It may be C, but I would see if there is another option.

8 0
3 years ago
Greatest to least - 1/2, 3/5, 3/7
Natalka [10]
3/7, 3/5, 1/2 is the answer it starts from the lowest to the lagest
4 0
3 years ago
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