The equation for the pH of a substance is pH = Hog[H*], where H+ is the concentration of hydrogen ions. What is the
approximate pH of a solution whose hydrogen ion concentration is 2x 10-9?

5x + 5

step-by-step explanation:

you should always add the diagrams and graphs we cannot see. this particular question is kind of borderline because we can make a graph for you.

(f + g)x = -x^2 +3x + 5 + x^2 + 2x

(f + g)x = 5x + 5

the graph of z = 5x + 5 is shown below. always use desmos when in doubt.

the formula of a slope:

we have the points (-2, 7) and (2, 3). substitute:

inverse operation of addition