Brian is measuring one of his family’s round dinner plates so that he can buy more plates of the same size. he found that it is 14 centimeters from the edge of the plate to the center of the plate. which is closest to the circumference, in centimeters, of the plate?

Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (–4, 0) and (6, 0). the y-intercept of the first parabola is (0, –12). the y-intercept of the second parabola is (0, –24). what is the positive difference between the a values for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth