Water reservoir

The cuboid reservoir contains 1900 hectoliters of water, and the water height is 2.5 m. Determine the bottom dimensions where one dimension is 3.2 m longer than the second.

Correct answer:

a =  7.26 m
b =  10.46 m

Step-by-step explanation:

V=abc=1900 hl=190 m3 190=2.5ab ab=76 b=3.2+a  a(3.2+a)=76 a2+3.2a76=0  x1,2=2ab±D=23.2±314.24 x1,2=1.6±8.863408 x1=7.263407922 x2=10.463407922  a=7.26 m
b=a+3.2=10.46 m



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