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?

Write the linear inequality shown in the graph. the gray area represents the shaded region. y> -3y+5 y> 3x-5 y< -3x+5 y< 3x-5

Scale factor of 2 is used to enlarge a figure as shown below the area of is 18 in.²

Is trapezoid abdc the result of a dilation of trapezoid mnpq by a scale factor of ? why or why not? yes, because ab and cd are each the lengths mn and qp. yes, because sides ab and cd are parallel to sides mn and qp. no, because ab is the length mn but cd is the length qp. no, because sides ab and cd have different slopes from sides mn and qp.