The equation for the pH of a substance is pH = -log[1], where H+ is the concentration of hydrogen
ions. What is the approximate pH of a solution if the concentration of hydrogen ions is 5.0 x 10-4 moles
per liter?
2.7
3.0
3.3
3.6

Use the distributive property to factor the expression. 15x + 6 a) 2 5 b) − 2 5 c) 3(5x + 2) d) 5(3x + 6)

Asquare is dilated by a scale factor of 1.25 to create a new square. how does the area of the new square compare with the area of the original square? a)the area of the new square is 1.25 times the area of the original square. b)the area of the new square is 2.50 times the area of the original square. c)the area of the new square is 1.252 times the area of the original square. d)the area of the new square is 1.253 times the area of the original square.

Which of the following is most likely the next step in the series? a3z, b6y, c9x, d12w, е15v, f18u