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Yuliya22 [10]
2 years ago
10

Hi Can you help me with this question.

Mathematics
1 answer:
Digiron [165]2 years ago
7 0

Answer:

The order of rotational symmetry is 4.

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A 20-sided fair die, an 8-sided fair die, and a 6-sided fair die are rolled. What is the probability of all three happening:
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  • 1/360

Step-by-step explanation:

<u>Probability of individual events:</u>

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5 0
3 years ago
-6n+21=12n-15 plz help really fast!
siniylev [52]
<span>-6n+21=12n-15
Subtract 12n from -6n so that the variable n is only on one side.
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Final Answer: 2 *Note: When you divide a negative number by another negative number, it creates a positive number.</span>
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How do you find a sum of a square root?
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You can add two square roots of the numbers if the numbers are the same:

\sqrt{a}+\sqrt{a}=2\sqrt{a}\\\\n\sqrt{a}+m\sqrt{a}=(n+m)\sqrt{a}\\\\\sqrt{a}+\sqrt{b}=\sqrt{a}+\sqrt{b}

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