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aniked [119]
3 years ago
12

A regular polygon has an interior angle of approximately 158.8°.

Mathematics
1 answer:
Step2247 [10]3 years ago
5 0

Answer:

  • 17 sides

Step-by-step explanation:

<u>Property of regular polygons:</u>

  • Sum of Interior Angles = (n−2) × 180°, where n is number of sides

<u>In our case we have:</u>

  • 158.8×n = (n - 2)×180
  • 180n - 158.8n = 360
  • 21.2n = 360
  • n = 360/21.2
  • n = 17
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Which expression does not belong with the other three? Explain your reasoning. 8 = x —2 3 = x ÷ 4 x − 6 = 5 x —3 = 9
Scorpion4ik [409]

Answer:

  • 3 = x ÷ 4

Step-by-step explanation:

<u>Given expressions:</u>

  • 8 = x - 2 ⇒ x = 8 + 2= 10
  • 3 = x ÷ 4  ⇒ x = 3*4 = 12
  • x - 6 = 5  ⇒ x = 5 + 6 = 11
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3 of them involves addition, one of them - multiplication

The second expression doesn't belong

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3 years ago
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There is one answer.  

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How to answer this problem
tangare [24]
<2= 30 degrees since its vertical to the 4th angle.
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3 years ago
a plan of a den is drawn on a scale of 1:30 .if the length of the den on the plan measures 6 inches ,what is the actual length o
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16. Find the values of x and y. (2y + 5) (5x - 17) (3x – 11)º
Iteru [2.4K]

Answer:

x = 26

y = 9

Step-by-step explanation:

(5x - 17)° + (3x - 11)° = 180° (angles in a straight line)

Solve for x

5x - 17 + 3x - 11 = 180

Collect like terms

5x + 3x - 17 - 11 = 180

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Add 28 to both sides

8x = 180 + 28

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Divide both sides by 8

x = 208/8

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Plug in the value of x and solve for y

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Subtract 162 from both sides

2y = 180 - 162

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y = 9 (dividing both sides by 2)

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3 years ago
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