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Paul [167]
3 years ago
6

For every how many degrees will an octagon have rotational symmetry?

Mathematics
2 answers:
vladimir2022 [97]3 years ago
8 0
A: 30 degrees :)))))
RoseWind [281]3 years ago
3 0
OMG SO EASY! A. 30 degrees is the answer
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Which of the following is equivalent to (n-3)(n-5) a. n2-8n+15, b. n2+8n-15, c. n2-15n+8
solong [7]
Foil the binomials

First: n*n=n^2
Outer: n*-5=-5n
Inner: -3*n=-3n
Last: -3*-5=15

Put it together and simplify
n^2-5n-3n+15
n^2-8n+15

Final answer: A
5 0
3 years ago
A bowling alley usually rents out between 22 and 25 pairs of bowling shoes during each of the 9 hours they are open. Which of th
Dmitry [639]

Answer:

B

Step-by-step explanation:

22+25=47

47/2=23.5 Average shoes rented per hour

23.5*9=211.5 shoes rented per 9 hours

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3 years ago
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Vilka [71]
34 try the app Cymath it’s great for math
5 0
3 years ago
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A regular pentagon ABCDE is shown <br><br><br> Work out the size of X
nikdorinn [45]
The sum of the angles in a pentagon is 540°.

This means that each angle is 108°.

Inside you pentagon, a triangle is drawn. This triangle is isosceles, because the corners are on the points of the regular pentagon. You know that angle C is 108°.

Angles in a triangle add up to 180°.

B and D will be the same size as this is isosceles.

180°-108° = 72°

This is B and D. You only need one of these, so you divide by 2.

The answer is 36°.

Hope this helps :)
7 0
3 years ago
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Soloha48 [4]

Answer:

Both are irrational

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3 years ago
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