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mina [271]
3 years ago
5

What is the approximate surface area of a sphere with a circumference of 37.68

Mathematics
1 answer:
sergij07 [2.7K]3 years ago
6 0
We must find the radius so we can plug this into the formula for surface area. 

Circumference = 2 \pi r
37.68 = 2 \pi r \\ r = 37.68/2 \pi

We are going to plug this in as our radius for the most accurate answer. 

The surface area of a sphere is 4 \pi  r^{2}

Surface Area = 4 \pi  ( \frac{37.68}{2 \pi }) ^{2} ≈ 451.93 units
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Answer:

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Step-by-step explanation:

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I.F=e^{\int Pdt}=e^{\int 30 dt}=e^{30 t}

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I(t)\times e^{30 t}=\frac{10}{30}e^{30 t}+C

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Substitute the values

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