Provide an appropriate response.
The percent of concentration of a acid absorbed in a new manufacturing process after x hr after the acid
4x
How long after the acid has been added is the concentration a
has been mixed is given by ADX)x2+49
maximum? Round answer to the nearest tenth, if necessary.
O 2.5 hr
hr
1 points Save Answer
7
O 4.9 hr
4 hr
Fig: 1