Question 35

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