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prettygirl321490
12.12.2019 •
Mathematics
The total surface area for a silo (base with radius r, cylindrical side with height h, hemispherical cap) is a = 3πr2 + 2πrh. suppose h and r are measured to be h = 20 feet and r = 8 feet to within an error of 1 2 foot for h and 1 4 foot for r. use differentials to estimate the maximum possible error for a (in square feet).
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Ответ:
Step-by-step explanation:
The total surface area for a silo A = 3πr^2 + 2πrh.
given
base radius r, cylindrical side with height h, hemispherical cap
h=20 ft r=8 ft
Δh= 1/2 ft and Δr= 1/4 ft
now, diffrentiating we get
dA= 3π×2r×dr+2π(r×dh+Δr×h)
putting values we get
solving the above equation we get
Ответ:
The total volume of milk would be![\dfrac{1}{2}\ gallon](/tpl/images/0688/3705/31c22.png)
Step-by-step explanation:
Since we have given that
Volume =![\dfrac{1}{4}\ gallon](/tpl/images/0688/3705/18b11.png)
Number of weeks = 2
So, Total volume of milk that Gino's family drank would be
Hence, the total volume of milk would be![\dfrac{1}{2}\ gallon](/tpl/images/0688/3705/31c22.png)