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adelina 88 [10]
3 years ago
5

I need help with this, I don’t understand how to do this

Mathematics
2 answers:
DanielleElmas [232]3 years ago
5 0

Answer:

76 because the angles must add up to 360

ladessa [460]3 years ago
5 0

Answer:

x = 76

Step-by-step explanation:

All angles must add up to 360 degrees. So, we add the angles we already have.

104 + 123 + 57 + x= 360 we will solve for x

284 + x = 360  add all known values on the left

x = 76 we subtract 284 from both sides to isolate x

To check our answer, we add all values

104 + 123 + 57 + (76) = 360 This is correct. :)

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True

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A closed circuit basically means everything is connected by wires and for this setup every device receives electricity making this true

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3 years ago
Brandon sights a helicopter above a building that is 200 feet away at an angle of elevation of 30 degrees. To the nearest foot,
Firlakuza [10]
The problem says that <span>Brandon sights a helicopter above a building that is 200 feet away at an angle of elevation of 30 degrees. So, you can calculate the height asked, by following this procedure:
</span>
 Tan(α)=Opposite leg/Adjacent leg

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 Opposite leg=x
 Adjacent leg=200 feet

 When you substitute these values into the formula above (Tan(α)=Opposite leg/Adjacent leg), you have:

 Tan(α)=Opposite leg/Adjacent leg
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 Therefore, the value of "x" is:

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4 0
3 years ago
Write the ratio of thirteen-year-olds to fourteen-year-olds in all three forms.
ludmilkaskok [199]

Answer:

13:14

13 to 14

13/14

Step-by-step explanation:

there are three ways to write ratios, with a colon ( : ), with the word "to", and as a fraction 13/14. ❤

6 0
3 years ago
Read 2 more answers
Help with solving equation: <br> -3x^4 + x^3-6x^2+15x-3. Divided by 3x
Solnce55 [7]
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3 years ago
The area of the hexagon is 24a2 – 18 square units. Which is an equivalent expression for the area of the hexagon based on the ar
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The area of the hexagon 24a² -18 is equivalent to 6(4a² -3).

Option A is the correct answer.

<h3>What is a Hexagon ?</h3>

A polygon with 6 sides is called a Hexagon.

The area of a hexagon is equal to area of 6 equilateral triangles.

The area of hexagon is given as

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Therefore the area of the hexagon 24a² -18 is equivalent to 6(4a² -3).

Option A is the correct answer.

To know more about Hexagon

brainly.com/question/3295271

#SPJ1

3 0
2 years ago
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