Water pollution A contaminant is leaking into a lake at a rate of Rstd 1600e 0.06t gallonsyh Enzymes have been added to the lake that neutralize the contaminant over time so that after t hours the fraction of the contaminant that remains is Sstd e20.32t . If there are currently 10,000 gallons of the contaminant in the lake, how many gallons are present in the lake 18 hours from now?

8.1 Integration by Parts ❑ ❑ ❑ ❑ ❑ Deals with: ∫ xe dx, ∫ xcos(2 x)dx∫, l| | d∫ , e c(x)dx , etc… ❑ ❑ ❑ ❑ Consider: u(x) & v(x) 2❑different❑able functions: (❑*v)’=(u*v’)+(u❑*v) &(integrate ' with respect to x) uv=...