Writing cross sections

[glad niche]

I'm on B, describing horizontal cross sections based on the top right graph. Red indicates what I got wrong. Where did they get 25 from on the 2nd integral?

[empty jay]

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[glad niche]

hopefully that's better quality

I had put my answer as 5 but 25 was the correct answer

[winter hedge]

Well the integral u are talking about , represents the value "y" , if u put x = 5 , u get y = 25 , that's the reason that there is 25 there

[glad niche]

gotchu gotchu

tysm

+close