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Levart [38]
3 years ago
14

How many lines of symmetry does a decagon have...? A.0 B.5 C.10 D.20

Mathematics
2 answers:
liraira [26]3 years ago
8 0
The answer is C or 10
andreyandreev [35.5K]3 years ago
8 0
The answer is C, 10. 

Have a great day! :)
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How do you do this?<br>Also please explain!:)​
White raven [17]

Answer:

answer b (0.73)

Step-by-step explanation:

"Triple" means to increase in size by a factor of 3.  

Thus, B = (1 + r)^2 becomes

3 = (1 + r)^2.  Our task is to determine the value of r, the annual interest rate.

Taking the square root of both sides, we get

√3 = 1 + r, which yields √3 - 1 = r.

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6 0
3 years ago
What is the endpoint formula given midpoint?
zysi [14]

Answer:

  B = 2M -A

Step-by-step explanation:

For given endpoint A and midpoint M, the other endpoint B can be found using the definition of the midpoint:

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The second endpoint can be found by subtracting the given endpoint from twice the midpoint:

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7 0
3 years ago
What is the slope of that line?
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Bsjzj jsuIs he judos jeiidbd 63883$
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3 years ago
Find the ratio of the area inside the square but outside the circle to the area of the square in the picture
Eduardwww [97]

Answer:

0.2146

Step-by-step explanation:

From the picture:

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Also For the square, the length of the square = 2r, Therefore the area of the square = Length × length = 2r × 2r = 4r²

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The ratio of the area inside the square but outside the circle to the area of the square =  r²(4 - π) / 4r² = (4 - π) / 4 = 1 - π/4 = 0.2146

5 0
3 years ago
Which is equivalent to 8X- Y + 3X
Zarrin [17]

Answer:

11x-y or 5x+y.

Step-by-step explanation: I hope this helps, I really don't know what the question means, since it not that specific.

6 0
3 years ago
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