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Reika [66]
3 years ago
7

The radius of a circle is 7.31. How should the circle area be reported?

Chemistry
1 answer:
Alona [7]3 years ago
7 0

I'm not sure but it should be 7.31 times 2 times 3.14 or pi

7.31 x 2 x 3.14 = 45.9068

If you need to round to the nearest tenth it will be 45.9

If you need to round to the nearest hundredth it will be 45.91

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<u>Answer:</u> The chemical equation is written below.

<u>Explanation:</u>

Every balanced chemical equation follows law of conservation of mass.

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By Stoichiometry of the reaction:

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By Stoichiometry of the reaction:

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Thus,

\Delta E=2.18\times 10^{-18}(\frac{1}{2^2} - \dfrac{1}{{\infty}^2})\ J

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