vivian2020

31.08.2021 • 

Mathematics

Carlos and Eduardo went to the movies on Saturday and bought some items at the snack bar. Carlos bought 1 hotdog, 2 sodas and a chocolate bar. Eduardo bought 1 pizza slice, 1 soda and 5 chocolate bars. Eduardo spent twice as much money as Carlos. You can find the prices of some items below. What is the price difference between a pizza slice and a chocolate bar?

Ответ:

kkpowell

01.07.2021

Mathematics

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361.7cm²

Step-by-step explanation:

Volume of sphere 1= 8cm³

=

Volume of sphere 2 = 647cm³

But volume of sphere = 4/3πr³

The radius of sphere 2

647 = 4/3πr³

((3*647)/4)/π= r³

5.36544 = r

Surface area = 4πr²

Surface area for the big sphere

= 4π5.36544²

= 361.7cm²

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