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The radius of a sphere changes from 5 cm to 7 cm. By how much has its volume changed, in cm^3

A. 10 2/3pi

B. 24pi

C. 218pi

D. 290 2/3pi

 Apr 12, 2018

Best Answer 

 #1
avatar+429 
+4

v=4/3*π*5^3

v=4/3*π*125

v=166.7πcm^3

 

v=4/3*π*7^3

v=4/3*π*343

v=457.3πcm^3

 

457.3πcm^3-166.7πcm^3=290 2/3π

Ans=D. 290 2/3π   

 

smileysmileysmiley

 Apr 12, 2018
 #1
avatar+429 
+4
Best Answer

v=4/3*π*5^3

v=4/3*π*125

v=166.7πcm^3

 

v=4/3*π*7^3

v=4/3*π*343

v=457.3πcm^3

 

457.3πcm^3-166.7πcm^3=290 2/3π

Ans=D. 290 2/3π   

 

smileysmileysmiley

qualitystreet Apr 12, 2018

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