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HannyBun
07.10.2020 •
Mathematics
What is the central idea of this paragraph?
Many math experts work for the National Security Agency.
The RSA computer system makes our country more secure.
Skilled people are still important national security workers.
Computers are better than people at keeping the nation safe.
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Ответ:
To find the total cost, we will need to multiply the cost per square meter, by the total area. To find the area we will use the formula A=πr². We will use 3.14 for pi.
We know that 2.1 is our radius. We will square it and then multiply it by 3.14.
2.1²=4.41
4.41(3.14)≈13.85
Our area is about 13.85. Now we will multiply by $1.70 to find the total cost. This gives us about $23.55.
The total cost of the glass would be about $23.55.
I hope this helps!