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Bezzdna [24]
2 years ago
5

A regular polygon has 15 sides. Which is a possible angle of rotational symmetry for the figure? 12° 45° 72° 90°

Mathematics
1 answer:
Agata [3.3K]2 years ago
7 0

Answer:

12 degrees is the correct answer.

Step-by-step explanation:

please award brainliest I'm trying to move up in rank

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Fastest way to solve this? NOT LOOKING FOR THE ANSWER with logical explanation please about how to solve it.
White raven [17]

Answer:

Distance of Tunnel is 500 meters + Train travel rate is 20 meters per second = 25 seconds to pass through the tunnel only therefore the outstanding balance of 35 seconds x 20 meters per second =600 meters Train

Step-by-step explanation:

Total of length of train 600 meters and tunnel (500 meters) is 1,200 meters +30 seconds = TR of 20 meters per second

7 0
2 years ago
Seven tenths of a number plus fourteen is less than forty-nine
zloy xaker [14]
I'm going to assume you need this inequality solved.

First, write it as numbers, not words.

7/10n + 14 < 49

where "n" is the unknown number.

Second, if I were you, I'd change that fraction into a decimal, as it'll make life easier later on.

7/10 = 0.7

Now, solve it like you would any other equation.

0.7n + 14 < 49

0.7n +14 - 14 < 49 - 14

0.7n < 35

0.7n ÷ 0.7 < 35 ÷ 0.7

n < 50

The answer is n < 50


5 0
3 years ago
What is the inverse of the function​
sleet_krkn [62]

Answer:

x^2-10x+31

Step-by-step explanation:

y=\sqrt{x-6}+5

x=\sqrt{y-6}+5

\sqrt{y-6}+5=x

\sqrt{y-6}+5-5=x-5

\sqrt{y-6}=x-5

\left(\sqrt{y-6}\right)^2=\left(x-5\right)^2

\left(\sqrt{y-6}\right)^2

=\left(\left(y-6\right)^{\frac{1}{2}}\right)^2

=y-6

\left(x-5\right)^2

=x^2-10x+25

y-6=x^2-10x+25

y-6+6=x^2-10x+25+6

y=x^2-10x+31

6 0
2 years ago
there are 3 lines of people waiting to enter a museum each line has 12 people 4 people decide to leave how many people remain in
kumpel [21]
32. (12×3)-4=32. I really hope that helps.
3 0
3 years ago
Read 2 more answers
How to add fractions 1/3+3/4
BARSIC [14]
You change 1/3 and 3/4 so that they have the same denominator.
The GCF is 12 in this case.

1/3 x 4 = 4/12
3/4 x 3 = 9/12

4/12 + 9/12 = 13/12 or 1 1/12 (One and one twelfth) 


Hope this helped !!
5 0
3 years ago
Read 2 more answers
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