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liq [111]
3 years ago
8

The chagram shows a regular octagon joined to an equilateral triangle

Mathematics
2 answers:
Deffense [45]3 years ago
4 0

Answer:

165°

Step-by-step explanation:

marysya [2.9K]3 years ago
3 0

Answer:

x = 165°

Step-by-step explanation:

x° = 360 - (the measure of one interior angle of the octagon + the measure of one interior angle of the equilateral ∆)

Each interior angle of a regular octagon = 135° ([tex] \frac{(n - 2)180}{n} = 135°)

An equilateral ∆ has equal angles, each measuring 60°.

Therefore:

x° = 360° - (135° + 60°)

x = 360 - 195

x = 165°

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Liula [17]
Hello!

To solve an algebraic equation, you must isolate the variable on one side. We’ll begin by restating the given equation:

12 + 12n = -48

Now subtract 12 from both sides of the equation:

12n = -60

Divide both sides by 12:

n = -5

We have now proven that “n” is equal to (-5).

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3 0
3 years ago
Solve the system.
Alex777 [14]

Answer:

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Step-by-step explanation:

Solve equation [2] for the variable  x  

x = -10y + 2z + 18

Plug this in for variable  x  in equation [1]

(-10y+2z+18) + 9y + z = 20

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Plug this in for variable  x  in equation [3]

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Solve equation [1] for the variable  y  

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Plug this in for variable  y  in equation [3]

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Solve equation [3] for the variable  z  

 z = 2

By now we know this much :

 x = -10y+2z+18

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Use the  z  value to solve for  y  

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Use the  y  and  z  values to solve for  x  

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6 0
2 years ago
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Stels [109]

Answer:

8,000

Step-by-step explanation:

the nearest thousand is 8,000 as it is past 7,500.

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The appropriate choice is ...
  C. 6
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3 years ago
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Please help me with this ASAP
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Answer:

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