What is the Zero of f ?
1 answer:
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The surface area of a sphere is 
where r is the radius;
The circumference is
so that 
using this value we can evaluate the surface area of 1 ball as:
For 100 ball you get:
The circumference is
For 100 ball you get:
We have to add 8/15 to 2/5.
To add two fractions we have to make them have the same denominator, so we have to convert 2/5 to have a denominator of 15. To do this, we have to multiply 2/5 by 3 and then we can add the fractions:
Answer: 14/15